Add pure-Rust Blake2

Cargo.toml

@@ -26,6 +26,7 @@ members = [
     "poly1305",
     "chacha20poly1305",
     "rsa",
+    "blake2",
 ]
 
 [workspace.package]

blake2/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "libcrux-blake2"
+description = "Formally verified blake2 hash library"
+
+version.workspace = true
+authors.workspace = true
+license.workspace = true
+homepage.workspace = true
+edition.workspace = true
+repository.workspace = true
+readme.workspace = true
+
+[dependencies]
+libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/" }
+libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros" }

blake2/src/hacl/impl_blake2_constants.rs

@@ -0,0 +1,41 @@
+#![allow(non_snake_case)]
+#![allow(non_upper_case_globals)]
+#![allow(non_camel_case_types)]
+#![allow(unused_assignments)]
+#![allow(unreachable_patterns)]
+
+pub(crate) const sigmaTable: [u32; 160] = [
+    0u32, 1u32, 2u32, 3u32, 4u32, 5u32, 6u32, 7u32, 8u32, 9u32, 10u32, 11u32, 12u32, 13u32, 14u32,
+    15u32, 14u32, 10u32, 4u32, 8u32, 9u32, 15u32, 13u32, 6u32, 1u32, 12u32, 0u32, 2u32, 11u32,
+    7u32, 5u32, 3u32, 11u32, 8u32, 12u32, 0u32, 5u32, 2u32, 15u32, 13u32, 10u32, 14u32, 3u32, 6u32,
+    7u32, 1u32, 9u32, 4u32, 7u32, 9u32, 3u32, 1u32, 13u32, 12u32, 11u32, 14u32, 2u32, 6u32, 5u32,
+    10u32, 4u32, 0u32, 15u32, 8u32, 9u32, 0u32, 5u32, 7u32, 2u32, 4u32, 10u32, 15u32, 14u32, 1u32,
+    11u32, 12u32, 6u32, 8u32, 3u32, 13u32, 2u32, 12u32, 6u32, 10u32, 0u32, 11u32, 8u32, 3u32, 4u32,
+    13u32, 7u32, 5u32, 15u32, 14u32, 1u32, 9u32, 12u32, 5u32, 1u32, 15u32, 14u32, 13u32, 4u32,
+    10u32, 0u32, 7u32, 6u32, 3u32, 9u32, 2u32, 8u32, 11u32, 13u32, 11u32, 7u32, 14u32, 12u32, 1u32,
+    3u32, 9u32, 5u32, 0u32, 15u32, 4u32, 8u32, 6u32, 2u32, 10u32, 6u32, 15u32, 14u32, 9u32, 11u32,
+    3u32, 0u32, 8u32, 12u32, 2u32, 13u32, 7u32, 1u32, 4u32, 10u32, 5u32, 10u32, 2u32, 8u32, 4u32,
+    7u32, 6u32, 1u32, 5u32, 15u32, 11u32, 9u32, 14u32, 3u32, 12u32, 13u32, 0u32,
+];
+
+pub(crate) const ivTable_S: [u32; 8] = [
+    0x6A09E667u32,
+    0xBB67AE85u32,
+    0x3C6EF372u32,
+    0xA54FF53Au32,
+    0x510E527Fu32,
+    0x9B05688Cu32,
+    0x1F83D9ABu32,
+    0x5BE0CD19u32,
+];
+
+pub(crate) const ivTable_B: [u64; 8] = [
+    0x6A09E667F3BCC908u64,
+    0xBB67AE8584CAA73Bu64,
+    0x3C6EF372FE94F82Bu64,
+    0xA54FF53A5F1D36F1u64,
+    0x510E527FADE682D1u64,
+    0x9B05688C2B3E6C1Fu64,
+    0x1F83D9ABFB41BD6Bu64,
+    0x5BE0CD19137E2179u64,
+];