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core/crypto: Expose the block sizes for every hash algorithm

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While I just went and made this private, this information is required
for keying HMAC.
This commit is contained in:
Yawning Angel
2024-02-07 00:37:18 +09:00
parent bc160d2eb7
commit 7a8b1669b0
11 changed files with 100 additions and 42 deletions
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core/crypto/hash/low_level.odin
+30 -2
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@@ -57,7 +57,7 @@ ALGORITHM_NAMES := [Algorithm]string {
.Insecure_SHA1 = "SHA-1",
}
// DIGEST_SIZES is the Algorithm to digest size.
// DIGEST_SIZES is the Algorithm to digest size in bytes.
DIGEST_SIZES := [Algorithm]int {
.Invalid = 0,
.BLAKE2B = blake2b.DIGEST_SIZE,
@@ -80,6 +80,29 @@ DIGEST_SIZES := [Algorithm]int {
.Insecure_SHA1 = sha1.DIGEST_SIZE,
}
// BLOCK_SIZES is the Algoritm to block size in bytes.
BLOCK_SIZES := [Algorithm]int {
.Invalid = 0,
.BLAKE2B = blake2b.BLOCK_SIZE,
.BLAKE2S = blake2s.BLOCK_SIZE,
.SHA224 = sha2.BLOCK_SIZE_256,
.SHA256 = sha2.BLOCK_SIZE_256,
.SHA384 = sha2.BLOCK_SIZE_512,
.SHA512 = sha2.BLOCK_SIZE_512,
.SHA512_256 = sha2.BLOCK_SIZE_512,
.SHA3_224 = sha3.BLOCK_SIZE_224,
.SHA3_256 = sha3.BLOCK_SIZE_256,
.SHA3_384 = sha3.BLOCK_SIZE_384,
.SHA3_512 = sha3.BLOCK_SIZE_512,
.SM3 = sm3.BLOCK_SIZE,
.Legacy_KECCAK_224 = keccak.BLOCK_SIZE_224,
.Legacy_KECCAK_256 = keccak.BLOCK_SIZE_256,
.Legacy_KECCAK_384 = keccak.BLOCK_SIZE_384,
.Legacy_KECCAK_512 = keccak.BLOCK_SIZE_512,
.Insecure_MD5 = md5.BLOCK_SIZE,
.Insecure_SHA1 = sha1.BLOCK_SIZE,
}
// Context is a concrete instantiation of a specific hash algorithm.
Context :: struct {
_algo: Algorithm,
@@ -349,7 +372,12 @@ algorithm :: proc(ctx: ^Context) -> Algorithm {
return ctx._algo
}
// digest_size returns the digest size of a Context instance.
// digest_size returns the digest size of a Context instance in bytes.
digest_size :: proc(ctx: ^Context) -> int {
return DIGEST_SIZES[ctx._algo]
}
// block_size returns the block size of a Context instance in bytes.
block_size :: proc(ctx: ^Context) -> int {
return BLOCK_SIZES[ctx._algo]
}