diff --git a/Cargo.lock b/Cargo.lock
index cc4f6fb2..b9bfc7bb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6,12 +6,8 @@ version = 3
 name = "aead"
 version = "0.5.2"
 dependencies = [
- "arrayvec",
- "blobby",
- "bytes",
  "crypto-common 0.1.6",
  "generic-array",
- "heapless",
 ]
 
 [[package]]
@@ -50,56 +46,22 @@ dependencies = [
 ]
 
 [[package]]
-name = "arrayvec"
-version = "0.7.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96d30a06541fbafbc7f82ed10c06164cfbd2c401138f6addd8404629c4b16711"
-
-[[package]]
-name = "async-signature"
-version = "0.3.0"
-dependencies = [
- "async-trait",
- "signature 2.1.0",
-]
-
-[[package]]
-name = "async-trait"
-version = "0.1.74"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a66537f1bb974b254c98ed142ff995236e81b9d0fe4db0575f46612cb15eb0f9"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "atomic-polyfill"
-version = "0.1.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3ff7eb3f316534d83a8a2c3d1674ace8a5a71198eba31e2e2b597833f699b28"
-dependencies = [
- "critical-section",
-]
-
-[[package]]
-name = "autocfg"
-version = "1.1.0"
+name = "base16ct"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+checksum = "349a06037c7bf932dd7e7d1f653678b2038b9ad46a74102f1fc7bd7872678cce"
 
 [[package]]
 name = "base16ct"
-version = "0.1.1"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "349a06037c7bf932dd7e7d1f653678b2038b9ad46a74102f1fc7bd7872678cce"
+checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
 
 [[package]]
 name = "base64ct"
-version = "1.1.1"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6b4d9b1225d28d360ec6a231d65af1fd99a2a095154c8040689617290569c5c"
+checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
 
 [[package]]
 name = "bincode"
@@ -110,6 +72,18 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "bitvec"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bc2832c24239b0141d5674bb9174f9d68a8b5b3f2753311927c172ca46f7e9c"
+dependencies = [
+ "funty",
+ "radium",
+ "tap",
+ "wyz",
+]
+
 [[package]]
 name = "blobby"
 version = "0.3.1"
@@ -142,6 +116,15 @@ dependencies = [
  "crypto-common 0.2.0-pre",
 ]
 
+[[package]]
+name = "block-padding"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a8894febbff9f758034a5b8e12d87918f56dfc64a8e1fe757d65e29041538d93"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "block-padding"
 version = "0.4.0-pre"
@@ -156,12 +139,6 @@ version = "1.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
-[[package]]
-name = "bytes"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2bd12c1caf447e69cd4528f47f94d203fd2582878ecb9e9465484c4148a8223"
-
 [[package]]
 name = "cc"
 version = "1.0.83"
@@ -245,10 +222,18 @@ dependencies = [
 ]
 
 [[package]]
-name = "critical-section"
-version = "1.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7059fff8937831a9ae6f0fe4d658ffabf58f2ca96aa9dec1c889f936f705f216"
+name = "crypto"
+version = "0.5.1"
+dependencies = [
+ "aead 0.5.2",
+ "cipher 0.4.4",
+ "crypto-common 0.1.6",
+ "digest 0.10.7",
+ "elliptic-curve 0.13.6",
+ "password-hash",
+ "signature 2.1.0",
+ "universal-hash 0.5.1",
+]
 
 [[package]]
 name = "crypto-bigint"
@@ -274,6 +259,18 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "crypto-bigint"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "740fe28e594155f10cfc383984cbefd529d7396050557148f79cb0f621204124"
+dependencies = [
+ "generic-array",
+ "rand_core 0.6.4",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
 name = "crypto-common"
 version = "0.1.6"
@@ -343,6 +340,17 @@ dependencies = [
  "const-oid 0.9.5",
 ]
 
+[[package]]
+name = "der"
+version = "0.7.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fffa369a668c8af7dbf8b5e56c9f744fbd399949ed171606040001947de40b1c"
+dependencies = [
+ "const-oid 0.9.5",
+ "pem-rfc7468 0.7.0",
+ "zeroize",
+]
+
 [[package]]
 name = "digest"
 version = "0.9.0"
@@ -402,7 +410,7 @@ dependencies = [
  "ff 0.10.1",
  "generic-array",
  "group 0.10.0",
- "pkcs8",
+ "pkcs8 0.7.6",
  "rand_core 0.6.4",
  "subtle",
  "zeroize",
@@ -414,7 +422,7 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e7bb888ab5300a19b8e5bceef25ac745ad065f3c9f7efc6de1b91958110891d3"
 dependencies = [
- "base16ct",
+ "base16ct 0.1.1",
  "crypto-bigint 0.4.9",
  "der 0.6.1",
  "digest 0.10.7",
@@ -423,8 +431,34 @@ dependencies = [
  "group 0.12.1",
  "hkdf 0.12.3",
  "rand_core 0.6.4",
- "sec1",
+ "sec1 0.3.0",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "elliptic-curve"
+version = "0.13.6"
+dependencies = [
+ "base16ct 0.2.0",
+ "base64ct",
+ "crypto-bigint 0.5.3",
+ "digest 0.10.7",
+ "ff 0.13.0",
+ "generic-array",
+ "group 0.13.0",
+ "hex-literal",
+ "hkdf 0.12.3",
+ "pem-rfc7468 0.7.0",
+ "pkcs8 0.10.2",
+ "rand_core 0.6.4",
+ "sec1 0.7.3",
+ "serde_json",
+ "serdect",
+ "sha2 0.10.8",
+ "sha3",
  "subtle",
+ "tap",
  "zeroize",
 ]
 
@@ -448,6 +482,23 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "ff"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ded41244b729663b1e574f1b4fb731469f69f79c17667b5d776b16cda0479449"
+dependencies = [
+ "bitvec",
+ "rand_core 0.6.4",
+ "subtle",
+]
+
+[[package]]
+name = "funty"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
+
 [[package]]
 name = "generic-array"
 version = "0.14.7"
@@ -456,6 +507,7 @@ checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
 dependencies = [
  "typenum",
  "version_check",
+ "zeroize",
 ]
 
 [[package]]
@@ -508,32 +560,21 @@ dependencies = [
 ]
 
 [[package]]
-name = "hash32"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0c35f58762feb77d74ebe43bdbc3210f09be9fe6742234d573bacc26ed92b67"
-dependencies = [
- "byteorder",
-]
-
-[[package]]
-name = "heapless"
-version = "0.7.16"
+name = "group"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db04bc24a18b9ea980628ecf00e6c0264f3c1426dac36c00cb49b6fbad8b0743"
+checksum = "f0f9ef7462f7c099f518d754361858f86d8a07af53ba9af0fe635bbccb151a63"
 dependencies = [
- "atomic-polyfill",
- "hash32",
- "rustc_version",
- "spin",
- "stable_deref_trait",
+ "ff 0.13.0",
+ "rand_core 0.6.4",
+ "subtle",
 ]
 
 [[package]]
 name = "hex-literal"
-version = "0.3.4"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ebdb29d2ea9ed0083cd8cece49bbd968021bd99b0849edb4a9a7ee0fdf6a4e0"
+checksum = "6fe2267d4ed49bc07b63801559be28c718ea06c4738b7a03c94df7386d2cde46"
 
 [[package]]
 name = "hkdf"
@@ -609,6 +650,7 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a0c10553d664a4d0bcff9f4215d0aac67a639cc68ef660840afe309b807bc9f5"
 dependencies = [
+ "block-padding 0.3.3",
  "generic-array",
 ]
 
@@ -617,10 +659,16 @@ name = "inout"
 version = "0.2.0-pre"
 source = "git+https://github.com/RustCrypto/utils.git#b755f1a29b074d8b0a6fc5fda5744312a11632c7"
 dependencies = [
- "block-padding",
+ "block-padding 0.4.0-pre",
  "hybrid-array",
 ]
 
+[[package]]
+name = "itoa"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af150ab688ff2122fcef229be89cb50dd66af9e01a4ff320cc137eecc9bacc38"
+
 [[package]]
 name = "jobserver"
 version = "0.1.26"
@@ -630,6 +678,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "keccak"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f6d5ed8676d904364de097082f4e7d240b571b67989ced0240f08b7f966f940"
+dependencies = [
+ "cpufeatures",
+]
+
 [[package]]
 name = "kem"
 version = "0.2.0"
@@ -651,16 +708,6 @@ version = "0.2.149"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a08173bc88b7955d1b3145aa561539096c421ac8debde8cbc3612ec635fee29b"
 
-[[package]]
-name = "lock_api"
-version = "0.4.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c168f8615b12bc01f9c17e2eb0cc07dcae1940121185446edc3744920e8ef45"
-dependencies = [
- "autocfg",
- "scopeguard",
-]
-
 [[package]]
 name = "opaque-debug"
 version = "0.3.0"
@@ -698,9 +745,18 @@ dependencies = [
 
 [[package]]
 name = "pem-rfc7468"
-version = "0.2.4"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f22eb0e3c593294a99e9ff4b24cf6b752d43f193aa4415fe5077c159996d497"
+dependencies = [
+ "base64ct",
+]
+
+[[package]]
+name = "pem-rfc7468"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84e93a3b1cc0510b03020f33f21e62acdde3dcaef432edc95bea377fbd4c2cd4"
+checksum = "88b39c9bfcfc231068454382784bb460aae594343fb030d46e9f50a645418412"
 dependencies = [
  "base64ct",
 ]
@@ -712,11 +768,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ee3ef9b64d26bad0536099c816c6734379e45bbd5f14798def6809e5cc350447"
 dependencies = [
  "der 0.4.5",
- "pem-rfc7468",
- "spki",
+ "pem-rfc7468 0.2.3",
+ "spki 0.4.1",
  "zeroize",
 ]
 
+[[package]]
+name = "pkcs8"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
+dependencies = [
+ "der 0.7.8",
+ "spki 0.7.2",
+]
+
 [[package]]
 name = "poly1305"
 version = "0.8.0"
@@ -805,6 +871,12 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "radium"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc33ff2d4973d518d823d61aa239014831e521c75da58e3df4840d3f47749d09"
+
 [[package]]
 name = "rand"
 version = "0.8.5"
@@ -842,19 +914,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "rustc_version"
-version = "0.4.0"
+name = "ryu"
+version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
-dependencies = [
- "semver",
-]
-
-[[package]]
-name = "scopeguard"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
+checksum = "1ad4cc8da4ef723ed60bced201181d83791ad433213d8c24efffda1eec85d741"
 
 [[package]]
 name = "sec1"
@@ -862,7 +925,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3be24c1842290c45df0a7bf069e0c268a747ad05a192f2fd7dcfdbc1cba40928"
 dependencies = [
- "base16ct",
+ "base16ct 0.1.1",
  "der 0.6.1",
  "generic-array",
  "subtle",
@@ -870,10 +933,19 @@ dependencies = [
 ]
 
 [[package]]
-name = "semver"
-version = "1.0.20"
+name = "sec1"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "836fa6a3e1e547f9a2c4040802ec865b5d85f4014efe00555d7090a3dcaa1090"
+checksum = "d3e97a565f76233a6003f9f5c54be1d9c5bdfa3eccfb189469f11ec4901c47dc"
+dependencies = [
+ "base16ct 0.2.0",
+ "der 0.7.8",
+ "generic-array",
+ "pkcs8 0.10.2",
+ "serdect",
+ "subtle",
+ "zeroize",
+]
 
 [[package]]
 name = "serde"
@@ -904,6 +976,27 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "serde_json"
+version = "1.0.108"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d1c7e3eac408d115102c4c24ad393e0821bb3a5df4d506a80f85f7a742a526b"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "serdect"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a84f14a19e9a014bb9f4512488d9829a68e04ecabffb0f9904cd1ace94598177"
+dependencies = [
+ "base16ct 0.2.0",
+ "serde",
+]
+
 [[package]]
 name = "sha2"
 version = "0.9.9"
@@ -928,6 +1021,16 @@ dependencies = [
  "digest 0.10.7",
 ]
 
+[[package]]
+name = "sha3"
+version = "0.10.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75872d278a8f37ef87fa0ddbda7802605cb18344497949862c0d4dcb291eba60"
+dependencies = [
+ "digest 0.10.7",
+ "keccak",
+]
+
 [[package]]
 name = "signature"
 version = "1.3.2"
@@ -941,31 +1044,6 @@ dependencies = [
 [[package]]
 name = "signature"
 version = "2.1.0"
-dependencies = [
- "digest 0.10.7",
- "hex-literal",
- "rand_core 0.6.4",
- "sha2 0.10.8",
- "signature_derive",
-]
-
-[[package]]
-name = "signature_derive"
-version = "2.0.1"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "spin"
-version = "0.9.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
-dependencies = [
- "lock_api",
-]
 
 [[package]]
 name = "spki"
@@ -977,10 +1055,14 @@ dependencies = [
 ]
 
 [[package]]
-name = "stable_deref_trait"
-version = "1.2.0"
+name = "spki"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
+checksum = "9d1e996ef02c474957d681f1b05213dfb0abab947b446a62d37770b23500184a"
+dependencies = [
+ "base64ct",
+ "der 0.7.8",
+]
 
 [[package]]
 name = "subtle"
@@ -999,6 +1081,12 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "tap"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"
+
 [[package]]
 name = "typenum"
 version = "1.17.0"
@@ -1041,6 +1129,15 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "wyz"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05f360fc0b24296329c78fda852a1e9ae82de9cf7b27dae4b7f62f118f77b9ed"
+dependencies = [
+ "tap",
+]
+
 [[package]]
 name = "x25519-dalek"
 version = "2.0.0-pre.1"
diff --git a/Cargo.toml b/Cargo.toml
index 59dd5ff5..436bc20f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,21 +1,21 @@
 [workspace]
 resolver = "2"
 members = [
-    "aead",
     "cipher",
+    "crypto",
     "crypto-common",
     "digest",
+    "elliptic-curve",
     "kem",
     "password-hash",
+]
+# TODO: re-add to `members` when MSRV has been bumped to 1.60+
+exclude = [
+    "aead",
     "signature",
     "signature/async",
     "universal-hash",
 ]
-# re-add when all crates are MSRV 1.60+
-exclude = [
-    "crypto",
-    "elliptic-curve"
-]
 
 [patch.crates-io]
 block-buffer = { git = "https://github.com/RustCrypto/utils.git" }
diff --git a/aead/Cargo.lock b/aead/Cargo.lock
new file mode 100644
index 00000000..6fb255ac
--- /dev/null
+++ b/aead/Cargo.lock
@@ -0,0 +1,151 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "aead"
+version = "0.5.2"
+dependencies = [
+ "arrayvec",
+ "blobby",
+ "bytes",
+ "crypto-common",
+ "generic-array",
+ "heapless",
+]
+
+[[package]]
+name = "arrayvec"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a2f58b0bb10c380af2b26e57212856b8c9a59e0925b4c20f4a174a49734eaf7"
+
+[[package]]
+name = "atomic-polyfill"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3ff7eb3f316534d83a8a2c3d1674ace8a5a71198eba31e2e2b597833f699b28"
+dependencies = [
+ "critical-section",
+]
+
+[[package]]
+name = "blobby"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc52553543ecb104069b0ff9e0fcc5c739ad16202935528a112d974e8f1a4ee8"
+
+[[package]]
+name = "byteorder"
+version = "1.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73b5bdfe7ee3ad0b99c9801d58807a9dbc9e09196365b0203853b99889ab3c87"
+
+[[package]]
+name = "bytes"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad1f8e949d755f9d79112b5bb46938e0ef9d3804a0b16dfab13aafcaa5f0fa72"
+
+[[package]]
+name = "cfg-if"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4c819a1287eb618df47cc647173c5c4c66ba19d888a6e50d605672aed3140de"
+
+[[package]]
+name = "critical-section"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d02ba51481d019be9c74a831d1133c364d78831b75c833478f3a21e1fd91e01a"
+
+[[package]]
+name = "crypto-common"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5999502d32b9c48d492abe66392408144895020ec4709e549e840799f3bb74c0"
+dependencies = [
+ "generic-array",
+ "rand_core",
+ "typenum",
+]
+
+[[package]]
+name = "generic-array"
+version = "0.14.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "501466ecc8a30d1d3b7fc9229b122b2ce8ed6e9d9223f1138d4babb253e51817"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee8025cf36f917e6a52cce185b7c7177689b838b7ec138364e50cc2277a56cf4"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
+[[package]]
+name = "hash32"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0c35f58762feb77d74ebe43bdbc3210f09be9fe6742234d573bacc26ed92b67"
+dependencies = [
+ "byteorder",
+]
+
+[[package]]
+name = "heapless"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e94c13b78b595d2adbd708bce276664f1047f98fc32ddbf463b4c191158334a6"
+dependencies = [
+ "atomic-polyfill",
+ "hash32",
+ "stable_deref_trait",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74dfca3d9957906e8d1e6a0b641dc9a59848e793f1da2165889fd4f62d10d79c"
+
+[[package]]
+name = "rand_core"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34cf66eb183df1c5876e2dcf6b13d57340741e8dc255b48e40a26de954d06ae7"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "stable_deref_trait"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "15132e0e364248108c5e2c02e3ab539be8d6f5d52a01ca9bbf27ed657316f02b"
+
+[[package]]
+name = "typenum"
+version = "1.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b63708a265f51345575b27fe43f9500ad611579e764c79edbc2037b1121959ec"
+
+[[package]]
+name = "version_check"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45d3d553fd9413fffe7147a20171d640eda0ad4c070acd7d0c885a21bcd2e8b7"
+
+[[package]]
+name = "wasi"
+version = "0.9.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
diff --git a/crypto/Cargo.lock b/crypto/Cargo.lock
deleted file mode 100644
index 8fa3352f..00000000
--- a/crypto/Cargo.lock
+++ /dev/null
@@ -1,290 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 3
-
-[[package]]
-name = "aead"
-version = "0.5.2"
-dependencies = [
- "crypto-common",
- "generic-array",
-]
-
-[[package]]
-name = "base16ct"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
-
-[[package]]
-name = "base64ct"
-version = "1.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
-
-[[package]]
-name = "block-buffer"
-version = "0.10.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
-dependencies = [
- "generic-array",
-]
-
-[[package]]
-name = "block-padding"
-version = "0.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8894febbff9f758034a5b8e12d87918f56dfc64a8e1fe757d65e29041538d93"
-dependencies = [
- "generic-array",
-]
-
-[[package]]
-name = "cfg-if"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
-
-[[package]]
-name = "cipher"
-version = "0.4.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "773f3b9af64447d2ce9850330c473515014aa235e6a783b02db81ff39e4a3dad"
-dependencies = [
- "crypto-common",
- "inout",
-]
-
-[[package]]
-name = "const-oid"
-version = "0.9.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "520fbf3c07483f94e3e3ca9d0cfd913d7718ef2483d2cfd91c0d9e91474ab913"
-
-[[package]]
-name = "crypto"
-version = "0.5.1"
-dependencies = [
- "aead",
- "cipher",
- "crypto-common",
- "digest",
- "elliptic-curve",
- "password-hash",
- "signature",
- "universal-hash",
-]
-
-[[package]]
-name = "crypto-bigint"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c2538c4e68e52548bacb3e83ac549f903d44f011ac9d5abb5e132e67d0808f7"
-dependencies = [
- "generic-array",
- "rand_core",
- "subtle",
- "zeroize",
-]
-
-[[package]]
-name = "crypto-common"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
-dependencies = [
- "generic-array",
- "rand_core",
- "typenum",
-]
-
-[[package]]
-name = "der"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82b10af9f9f9f2134a42d3f8aa74658660f2e0234b0eb81bd171df8aa32779ed"
-dependencies = [
- "const-oid",
- "zeroize",
-]
-
-[[package]]
-name = "digest"
-version = "0.10.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8168378f4e5023e7218c89c891c0fd8ecdb5e5e4f18cb78f38cf245dd021e76f"
-dependencies = [
- "block-buffer",
- "crypto-common",
- "subtle",
-]
-
-[[package]]
-name = "elliptic-curve"
-version = "0.13.5"
-dependencies = [
- "base16ct",
- "crypto-bigint",
- "ff",
- "generic-array",
- "group",
- "pkcs8",
- "rand_core",
- "sec1",
- "subtle",
- "zeroize",
-]
-
-[[package]]
-name = "ff"
-version = "0.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ded41244b729663b1e574f1b4fb731469f69f79c17667b5d776b16cda0479449"
-dependencies = [
- "rand_core",
- "subtle",
-]
-
-[[package]]
-name = "generic-array"
-version = "0.14.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
-dependencies = [
- "typenum",
- "version_check",
- "zeroize",
-]
-
-[[package]]
-name = "getrandom"
-version = "0.2.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c85e1d9ab2eadba7e5040d4e09cbd6d072b76a557ad64e797c2cb9d4da21d7e4"
-dependencies = [
- "cfg-if",
- "libc",
- "wasi",
-]
-
-[[package]]
-name = "group"
-version = "0.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0f9ef7462f7c099f518d754361858f86d8a07af53ba9af0fe635bbccb151a63"
-dependencies = [
- "ff",
- "rand_core",
- "subtle",
-]
-
-[[package]]
-name = "inout"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a0c10553d664a4d0bcff9f4215d0aac67a639cc68ef660840afe309b807bc9f5"
-dependencies = [
- "block-padding",
- "generic-array",
-]
-
-[[package]]
-name = "libc"
-version = "0.2.141"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3304a64d199bb964be99741b7a14d26972741915b3649639149b2479bb46f4b5"
-
-[[package]]
-name = "password-hash"
-version = "0.5.0"
-dependencies = [
- "base64ct",
- "rand_core",
- "subtle",
-]
-
-[[package]]
-name = "pkcs8"
-version = "0.10.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
-dependencies = [
- "der",
- "spki",
-]
-
-[[package]]
-name = "rand_core"
-version = "0.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
-dependencies = [
- "getrandom",
-]
-
-[[package]]
-name = "sec1"
-version = "0.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0aec48e813d6b90b15f0b8948af3c63483992dee44c03e9930b3eebdabe046e"
-dependencies = [
- "base16ct",
- "der",
- "generic-array",
- "pkcs8",
- "subtle",
- "zeroize",
-]
-
-[[package]]
-name = "signature"
-version = "2.1.0"
-
-[[package]]
-name = "spki"
-version = "0.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37a5be806ab6f127c3da44b7378837ebf01dadca8510a0e572460216b228bd0e"
-dependencies = [
- "base64ct",
- "der",
-]
-
-[[package]]
-name = "subtle"
-version = "2.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
-
-[[package]]
-name = "typenum"
-version = "1.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "497961ef93d974e23eb6f433eb5fe1b7930b659f06d12dec6fc44a8f554c0bba"
-
-[[package]]
-name = "universal-hash"
-version = "0.5.1"
-dependencies = [
- "crypto-common",
- "subtle",
-]
-
-[[package]]
-name = "version_check"
-version = "0.9.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
-
-[[package]]
-name = "wasi"
-version = "0.11.0+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
-
-[[package]]
-name = "zeroize"
-version = "1.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2a0956f1ba7c7909bfb66c2e9e4124ab6f6482560f6628b5aaeba39207c9aad9"
diff --git a/elliptic-curve/Cargo.lock b/elliptic-curve/Cargo.lock
deleted file mode 100644
index 827b3abe..00000000
--- a/elliptic-curve/Cargo.lock
+++ /dev/null
@@ -1,380 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 3
-
-[[package]]
-name = "base16ct"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
-
-[[package]]
-name = "base64ct"
-version = "1.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
-
-[[package]]
-name = "bitvec"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bc2832c24239b0141d5674bb9174f9d68a8b5b3f2753311927c172ca46f7e9c"
-dependencies = [
- "funty",
- "radium",
- "tap",
- "wyz",
-]
-
-[[package]]
-name = "block-buffer"
-version = "0.10.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
-dependencies = [
- "generic-array",
-]
-
-[[package]]
-name = "cfg-if"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
-
-[[package]]
-name = "const-oid"
-version = "0.9.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "520fbf3c07483f94e3e3ca9d0cfd913d7718ef2483d2cfd91c0d9e91474ab913"
-
-[[package]]
-name = "cpufeatures"
-version = "0.2.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "280a9f2d8b3a38871a3c8a46fb80db65e5e5ed97da80c4d08bf27fb63e35e181"
-dependencies = [
- "libc",
-]
-
-[[package]]
-name = "crypto-bigint"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c2538c4e68e52548bacb3e83ac549f903d44f011ac9d5abb5e132e67d0808f7"
-dependencies = [
- "generic-array",
- "rand_core",
- "subtle",
- "zeroize",
-]
-
-[[package]]
-name = "crypto-common"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
-dependencies = [
- "generic-array",
- "typenum",
-]
-
-[[package]]
-name = "der"
-version = "0.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19c5cb402c5c958281c7c0702edea7b780d03b86b606497ca3a10fcd3fc393ac"
-dependencies = [
- "const-oid",
- "pem-rfc7468",
- "zeroize",
-]
-
-[[package]]
-name = "digest"
-version = "0.10.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8168378f4e5023e7218c89c891c0fd8ecdb5e5e4f18cb78f38cf245dd021e76f"
-dependencies = [
- "block-buffer",
- "crypto-common",
- "subtle",
-]
-
-[[package]]
-name = "elliptic-curve"
-version = "0.13.6"
-dependencies = [
- "base16ct",
- "base64ct",
- "crypto-bigint",
- "digest",
- "ff",
- "generic-array",
- "group",
- "hex-literal",
- "hkdf",
- "pem-rfc7468",
- "pkcs8",
- "rand_core",
- "sec1",
- "serde_json",
- "serdect",
- "sha2",
- "sha3",
- "subtle",
- "tap",
- "zeroize",
-]
-
-[[package]]
-name = "ff"
-version = "0.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ded41244b729663b1e574f1b4fb731469f69f79c17667b5d776b16cda0479449"
-dependencies = [
- "bitvec",
- "rand_core",
- "subtle",
-]
-
-[[package]]
-name = "funty"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
-
-[[package]]
-name = "generic-array"
-version = "0.14.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
-dependencies = [
- "typenum",
- "version_check",
- "zeroize",
-]
-
-[[package]]
-name = "getrandom"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c05aeb6a22b8f62540c194aac980f2115af067bfe15a0734d7277a768d396b31"
-dependencies = [
- "cfg-if",
- "libc",
- "wasi",
-]
-
-[[package]]
-name = "group"
-version = "0.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0f9ef7462f7c099f518d754361858f86d8a07af53ba9af0fe635bbccb151a63"
-dependencies = [
- "ff",
- "rand_core",
- "subtle",
-]
-
-[[package]]
-name = "hex-literal"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fe2267d4ed49bc07b63801559be28c718ea06c4738b7a03c94df7386d2cde46"
-
-[[package]]
-name = "hkdf"
-version = "0.12.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "791a029f6b9fc27657f6f188ec6e5e43f6911f6f878e0dc5501396e09809d437"
-dependencies = [
- "hmac",
-]
-
-[[package]]
-name = "hmac"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c49c37c09c17a53d937dfbb742eb3a961d65a994e6bcdcf37e7399d0cc8ab5e"
-dependencies = [
- "digest",
-]
-
-[[package]]
-name = "itoa"
-version = "1.0.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "453ad9f582a441959e5f0d088b02ce04cfe8d51a8eaf077f12ac6d3e94164ca6"
-
-[[package]]
-name = "keccak"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3afef3b6eff9ce9d8ff9b3601125eec7f0c8cbac7abd14f355d053fa56c98768"
-dependencies = [
- "cpufeatures",
-]
-
-[[package]]
-name = "libc"
-version = "0.2.141"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3304a64d199bb964be99741b7a14d26972741915b3649639149b2479bb46f4b5"
-
-[[package]]
-name = "pem-rfc7468"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88b39c9bfcfc231068454382784bb460aae594343fb030d46e9f50a645418412"
-dependencies = [
- "base64ct",
-]
-
-[[package]]
-name = "pkcs8"
-version = "0.10.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
-dependencies = [
- "der",
- "spki",
-]
-
-[[package]]
-name = "radium"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc33ff2d4973d518d823d61aa239014831e521c75da58e3df4840d3f47749d09"
-
-[[package]]
-name = "rand_core"
-version = "0.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
-dependencies = [
- "getrandom",
-]
-
-[[package]]
-name = "ryu"
-version = "1.0.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f91339c0467de62360649f8d3e185ca8de4224ff281f66000de5eb2a77a79041"
-
-[[package]]
-name = "sec1"
-version = "0.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48518a2b5775ba8ca5b46596aae011caa431e6ce7e4a67ead66d92f08884220e"
-dependencies = [
- "base16ct",
- "der",
- "generic-array",
- "pkcs8",
- "serdect",
- "subtle",
- "zeroize",
-]
-
-[[package]]
-name = "serde"
-version = "1.0.159"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c04e8343c3daeec41f58990b9d77068df31209f2af111e059e9fe9646693065"
-
-[[package]]
-name = "serde_json"
-version = "1.0.95"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d721eca97ac802aa7777b701877c8004d950fc142651367300d21c1cc0194744"
-dependencies = [
- "itoa",
- "ryu",
- "serde",
-]
-
-[[package]]
-name = "serdect"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a84f14a19e9a014bb9f4512488d9829a68e04ecabffb0f9904cd1ace94598177"
-dependencies = [
- "base16ct",
- "serde",
-]
-
-[[package]]
-name = "sha2"
-version = "0.10.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82e6b795fe2e3b1e845bafcb27aa35405c4d47cdfc92af5fc8d3002f76cebdc0"
-dependencies = [
- "cfg-if",
- "cpufeatures",
- "digest",
-]
-
-[[package]]
-name = "sha3"
-version = "0.10.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bdf0c33fae925bdc080598b84bc15c55e7b9a4a43b3c704da051f977469691c9"
-dependencies = [
- "digest",
- "keccak",
-]
-
-[[package]]
-name = "spki"
-version = "0.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37a5be806ab6f127c3da44b7378837ebf01dadca8510a0e572460216b228bd0e"
-dependencies = [
- "base64ct",
- "der",
-]
-
-[[package]]
-name = "subtle"
-version = "2.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
-
-[[package]]
-name = "tap"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"
-
-[[package]]
-name = "typenum"
-version = "1.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "497961ef93d974e23eb6f433eb5fe1b7930b659f06d12dec6fc44a8f554c0bba"
-
-[[package]]
-name = "version_check"
-version = "0.9.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
-
-[[package]]
-name = "wasi"
-version = "0.11.0+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
-
-[[package]]
-name = "wyz"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05f360fc0b24296329c78fda852a1e9ae82de9cf7b27dae4b7f62f118f77b9ed"
-dependencies = [
- "tap",
-]
-
-[[package]]
-name = "zeroize"
-version = "1.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2a0956f1ba7c7909bfb66c2e9e4124ab6f6482560f6628b5aaeba39207c9aad9"
diff --git a/signature/Cargo.lock b/signature/Cargo.lock
new file mode 100644
index 00000000..47027272
--- /dev/null
+++ b/signature/Cargo.lock
@@ -0,0 +1,189 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "async-signature"
+version = "0.3.0"
+dependencies = [
+ "async-trait",
+ "signature",
+]
+
+[[package]]
+name = "async-trait"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62d042b64fd281d31d58e80ac29426e114ae8eead17beb12fbd396a1d04eee84"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.0",
+]
+
+[[package]]
+name = "block-buffer"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03588e54c62ae6d763e2a80090d50353b785795361b4ff5b3bf0a5097fc31c0b"
+dependencies = [
+ "generic-array",
+]
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "cpufeatures"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28d997bd5e24a5928dd43e46dc529867e207907fe0b239c3477d924f7f2ca320"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "crypto-common"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57952ca27b5e3606ff4dd79b0020231aaf9d6aa76dc05fd30137538c50bd3ce8"
+dependencies = [
+ "generic-array",
+ "typenum",
+]
+
+[[package]]
+name = "digest"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8168378f4e5023e7218c89c891c0fd8ecdb5e5e4f18cb78f38cf245dd021e76f"
+dependencies = [
+ "block-buffer",
+ "crypto-common",
+]
+
+[[package]]
+name = "generic-array"
+version = "0.14.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "501466ecc8a30d1d3b7fc9229b122b2ce8ed6e9d9223f1138d4babb253e51817"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
+[[package]]
+name = "hex-literal"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc38ca401ca1b8d89ff1185e39a132e5c4f86d844c0cf6364251576f2d7fa0c1"
+
+[[package]]
+name = "libc"
+version = "0.2.95"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "789da6d93f1b866ffe175afc5322a4d76c038605a1c3319bb57b06967ca98a36"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.52"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d0e1ae9e836cc3beddd63db0df682593d7e2d3d891ae8c9083d2113e1744224"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4424af4bf778aae2051a77b60283332f386554255d722233d09fbfc7e30da2fc"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+
+[[package]]
+name = "sha2"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99c3bd8169c58782adad9290a9af5939994036b76187f7b4f0e6de91dbbfc0ec"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
+
+[[package]]
+name = "signature"
+version = "2.1.0"
+dependencies = [
+ "digest",
+ "hex-literal",
+ "rand_core",
+ "sha2",
+ "signature_derive",
+]
+
+[[package]]
+name = "signature_derive"
+version = "2.0.1"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.0",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f8c8eab7d9f493cd89d4068085651d81ac7d39c56eb64f7158ea514b156e280"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4cff13bb1732bccfe3b246f3fdb09edfd51c01d6f5299b7ccd9457c2e4e37774"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "typenum"
+version = "1.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b63708a265f51345575b27fe43f9500ad611579e764c79edbc2037b1121959ec"
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d22af068fba1eb5edcb4aea19d382b2a3deb4c8f9d475c589b6ada9e0fd493ee"
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
+
+[[package]]
+name = "version_check"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45d3d553fd9413fffe7147a20171d640eda0ad4c070acd7d0c885a21bcd2e8b7"
diff --git a/signature/Cargo.toml b/signature/Cargo.toml
index e8fec598..0b1427dd 100644
--- a/signature/Cargo.toml
+++ b/signature/Cargo.toml
@@ -28,3 +28,7 @@ std = ["alloc"]
 [package.metadata.docs.rs]
 all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
+
+# TODO(tarcieri): remove when these crates are added to toplevel `members`
+[workspace]
+members = [".", "async"]
diff --git a/universal-hash/Cargo.lock b/universal-hash/Cargo.lock
new file mode 100644
index 00000000..2542bc3d
--- /dev/null
+++ b/universal-hash/Cargo.lock
@@ -0,0 +1,49 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "crypto-common"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
+dependencies = [
+ "generic-array",
+ "typenum",
+]
+
+[[package]]
+name = "generic-array"
+version = "0.14.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "501466ecc8a30d1d3b7fc9229b122b2ce8ed6e9d9223f1138d4babb253e51817"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
+[[package]]
+name = "subtle"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e81da0851ada1f3e9d4312c704aa4f8806f0f9d69faaf8df2f3464b4a9437c2"
+
+[[package]]
+name = "typenum"
+version = "1.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b63708a265f51345575b27fe43f9500ad611579e764c79edbc2037b1121959ec"
+
+[[package]]
+name = "universal-hash"
+version = "0.5.1"
+dependencies = [
+ "crypto-common",
+ "subtle",
+]
+
+[[package]]
+name = "version_check"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45d3d553fd9413fffe7147a20171d640eda0ad4c070acd7d0c885a21bcd2e8b7"