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Extended crypto API by variants that write the result into a destination buffer, instead of returning it

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This commit is contained in:
zhibog
2021-12-31 13:16:11 +01:00
parent c7ff296bef
commit 42033ea808
38 changed files with 2690 additions and 662 deletions
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core/crypto/keccak/keccak.odin
+130 -37
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@@ -21,18 +21,23 @@ import "../_sha3"
High level API
*/
DIGEST_SIZE_224 :: 28
DIGEST_SIZE_256 :: 32
DIGEST_SIZE_384 :: 48
DIGEST_SIZE_512 :: 64
// hash_string_224 will hash the given input and return the
// computed hash
hash_string_224 :: proc(data: string) -> [28]byte {
hash_string_224 :: proc(data: string) -> [DIGEST_SIZE_224]byte {
return hash_bytes_224(transmute([]byte)(data))
}
// hash_bytes_224 will hash the given input and return the
// computed hash
hash_bytes_224 :: proc(data: []byte) -> [28]byte {
hash: [28]byte
hash_bytes_224 :: proc(data: []byte) -> [DIGEST_SIZE_224]byte {
hash: [DIGEST_SIZE_224]byte
ctx: _sha3.Sha3_Context
ctx.mdlen = 28
ctx.mdlen = DIGEST_SIZE_224
ctx.is_keccak = true
_sha3.init(&ctx)
_sha3.update(&ctx, data)
@@ -40,12 +45,32 @@ hash_bytes_224 :: proc(data: []byte) -> [28]byte {
return hash
}
// hash_string_to_buffer_224 will hash the given input and assign the
// computed hash to the second parameter.
// It requires that the destination buffer is at least as big as the digest size
hash_string_to_buffer_224 :: proc(data: string, hash: []byte) {
hash_bytes_to_buffer_224(transmute([]byte)(data), hash);
}
// hash_bytes_to_buffer_224 will hash the given input and write the
// computed hash into the second parameter.
// It requires that the destination buffer is at least as big as the digest size
hash_bytes_to_buffer_224 :: proc(data, hash: []byte) {
assert(len(hash) >= DIGEST_SIZE_224, "Size of destination buffer is smaller than the digest size")
ctx: _sha3.Sha3_Context
ctx.mdlen = DIGEST_SIZE_224
ctx.is_keccak = true
_sha3.init(&ctx)
_sha3.update(&ctx, data)
_sha3.final(&ctx, hash)
}
// hash_stream_224 will read the stream in chunks and compute a
// hash from its contents
hash_stream_224 :: proc(s: io.Stream) -> ([28]byte, bool) {
hash: [28]byte
hash_stream_224 :: proc(s: io.Stream) -> ([DIGEST_SIZE_224]byte, bool) {
hash: [DIGEST_SIZE_224]byte
ctx: _sha3.Sha3_Context
ctx.mdlen = 28
ctx.mdlen = DIGEST_SIZE_224
ctx.is_keccak = true
_sha3.init(&ctx)
buf := make([]byte, 512)
@@ -63,7 +88,7 @@ hash_stream_224 :: proc(s: io.Stream) -> ([28]byte, bool) {
// hash_file_224 will read the file provided by the given handle
// and compute a hash
hash_file_224 :: proc(hd: os.Handle, load_at_once := false) -> ([28]byte, bool) {
hash_file_224 :: proc(hd: os.Handle, load_at_once := false) -> ([DIGEST_SIZE_224]byte, bool) {
if !load_at_once {
return hash_stream_224(os.stream_from_handle(hd))
} else {
@@ -71,7 +96,7 @@ hash_file_224 :: proc(hd: os.Handle, load_at_once := false) -> ([28]byte, bool)
return hash_bytes_224(buf[:]), ok
}
}
return [28]byte{}, false
return [DIGEST_SIZE_224]byte{}, false
}
hash_224 :: proc {
@@ -79,20 +104,22 @@ hash_224 :: proc {
hash_file_224,
hash_bytes_224,
hash_string_224,
hash_bytes_to_buffer_224,
hash_string_to_buffer_224,
}
// hash_string_256 will hash the given input and return the
// computed hash
hash_string_256 :: proc(data: string) -> [32]byte {
hash_string_256 :: proc(data: string) -> [DIGEST_SIZE_256]byte {
return hash_bytes_256(transmute([]byte)(data))
}
// hash_bytes_256 will hash the given input and return the
// computed hash
hash_bytes_256 :: proc(data: []byte) -> [32]byte {
hash: [32]byte
hash_bytes_256 :: proc(data: []byte) -> [DIGEST_SIZE_256]byte {
hash: [DIGEST_SIZE_256]byte
ctx: _sha3.Sha3_Context
ctx.mdlen = 32
ctx.mdlen = DIGEST_SIZE_256
ctx.is_keccak = true
_sha3.init(&ctx)
_sha3.update(&ctx, data)
@@ -100,12 +127,32 @@ hash_bytes_256 :: proc(data: []byte) -> [32]byte {
return hash
}
// hash_string_to_buffer_256 will hash the given input and assign the
// computed hash to the second parameter.
// It requires that the destination buffer is at least as big as the digest size
hash_string_to_buffer_256 :: proc(data: string, hash: []byte) {
hash_bytes_to_buffer_256(transmute([]byte)(data), hash);
}
// hash_bytes_to_buffer_256 will hash the given input and write the
// computed hash into the second parameter.
// It requires that the destination buffer is at least as big as the digest size
hash_bytes_to_buffer_256 :: proc(data, hash: []byte) {
assert(len(hash) >= DIGEST_SIZE_256, "Size of destination buffer is smaller than the digest size")
ctx: _sha3.Sha3_Context
ctx.mdlen = DIGEST_SIZE_256
ctx.is_keccak = true
_sha3.init(&ctx)
_sha3.update(&ctx, data)
_sha3.final(&ctx, hash)
}
// hash_stream_256 will read the stream in chunks and compute a
// hash from its contents
hash_stream_256 :: proc(s: io.Stream) -> ([32]byte, bool) {
hash: [32]byte
hash_stream_256 :: proc(s: io.Stream) -> ([DIGEST_SIZE_256]byte, bool) {
hash: [DIGEST_SIZE_256]byte
ctx: _sha3.Sha3_Context
ctx.mdlen = 32
ctx.mdlen = DIGEST_SIZE_256
ctx.is_keccak = true
_sha3.init(&ctx)
buf := make([]byte, 512)
@@ -123,7 +170,7 @@ hash_stream_256 :: proc(s: io.Stream) -> ([32]byte, bool) {
// hash_file_256 will read the file provided by the given handle
// and compute a hash
hash_file_256 :: proc(hd: os.Handle, load_at_once := false) -> ([32]byte, bool) {
hash_file_256 :: proc(hd: os.Handle, load_at_once := false) -> ([DIGEST_SIZE_256]byte, bool) {
if !load_at_once {
return hash_stream_256(os.stream_from_handle(hd))
} else {
@@ -131,7 +178,7 @@ hash_file_256 :: proc(hd: os.Handle, load_at_once := false) -> ([32]byte, bool)
return hash_bytes_256(buf[:]), ok
}
}
return [32]byte{}, false
return [DIGEST_SIZE_256]byte{}, false
}
hash_256 :: proc {
@@ -139,20 +186,22 @@ hash_256 :: proc {
hash_file_256,
hash_bytes_256,
hash_string_256,
hash_bytes_to_buffer_256,
hash_string_to_buffer_256,
}
// hash_string_384 will hash the given input and return the
// computed hash
hash_string_384 :: proc(data: string) -> [48]byte {
hash_string_384 :: proc(data: string) -> [DIGEST_SIZE_384]byte {
return hash_bytes_384(transmute([]byte)(data))
}
// hash_bytes_384 will hash the given input and return the
// computed hash
hash_bytes_384 :: proc(data: []byte) -> [48]byte {
hash: [48]byte
hash_bytes_384 :: proc(data: []byte) -> [DIGEST_SIZE_384]byte {
hash: [DIGEST_SIZE_384]byte
ctx: _sha3.Sha3_Context
ctx.mdlen = 48
ctx.mdlen = DIGEST_SIZE_384
ctx.is_keccak = true
_sha3.init(&ctx)
_sha3.update(&ctx, data)
@@ -160,12 +209,32 @@ hash_bytes_384 :: proc(data: []byte) -> [48]byte {
return hash
}
// hash_string_to_buffer_384 will hash the given input and assign the
// computed hash to the second parameter.
// It requires that the destination buffer is at least as big as the digest size
hash_string_to_buffer_384 :: proc(data: string, hash: []byte) {
hash_bytes_to_buffer_384(transmute([]byte)(data), hash);
}
// hash_bytes_to_buffer_384 will hash the given input and write the
// computed hash into the second parameter.
// It requires that the destination buffer is at least as big as the digest size
hash_bytes_to_buffer_384 :: proc(data, hash: []byte) {
assert(len(hash) >= DIGEST_SIZE_384, "Size of destination buffer is smaller than the digest size")
ctx: _sha3.Sha3_Context
ctx.mdlen = DIGEST_SIZE_384
ctx.is_keccak = true
_sha3.init(&ctx)
_sha3.update(&ctx, data)
_sha3.final(&ctx, hash)
}
// hash_stream_384 will read the stream in chunks and compute a
// hash from its contents
hash_stream_384 :: proc(s: io.Stream) -> ([48]byte, bool) {
hash: [48]byte
hash_stream_384 :: proc(s: io.Stream) -> ([DIGEST_SIZE_384]byte, bool) {
hash: [DIGEST_SIZE_384]byte
ctx: _sha3.Sha3_Context
ctx.mdlen = 48
ctx.mdlen = DIGEST_SIZE_384
ctx.is_keccak = true
_sha3.init(&ctx)
buf := make([]byte, 512)
@@ -183,7 +252,7 @@ hash_stream_384 :: proc(s: io.Stream) -> ([48]byte, bool) {
// hash_file_384 will read the file provided by the given handle
// and compute a hash
hash_file_384 :: proc(hd: os.Handle, load_at_once := false) -> ([48]byte, bool) {
hash_file_384 :: proc(hd: os.Handle, load_at_once := false) -> ([DIGEST_SIZE_384]byte, bool) {
if !load_at_once {
return hash_stream_384(os.stream_from_handle(hd))
} else {
@@ -191,7 +260,7 @@ hash_file_384 :: proc(hd: os.Handle, load_at_once := false) -> ([48]byte, bool)
return hash_bytes_384(buf[:]), ok
}
}
return [48]byte{}, false
return [DIGEST_SIZE_384]byte{}, false
}
hash_384 :: proc {
@@ -199,20 +268,22 @@ hash_384 :: proc {
hash_file_384,
hash_bytes_384,
hash_string_384,
hash_bytes_to_buffer_384,
hash_string_to_buffer_384,
}
// hash_string_512 will hash the given input and return the
// computed hash
hash_string_512 :: proc(data: string) -> [64]byte {
hash_string_512 :: proc(data: string) -> [DIGEST_SIZE_512]byte {
return hash_bytes_512(transmute([]byte)(data))
}
// hash_bytes_512 will hash the given input and return the
// computed hash
hash_bytes_512 :: proc(data: []byte) -> [64]byte {
hash: [64]byte
hash_bytes_512 :: proc(data: []byte) -> [DIGEST_SIZE_512]byte {
hash: [DIGEST_SIZE_512]byte
ctx: _sha3.Sha3_Context
ctx.mdlen = 64
ctx.mdlen = DIGEST_SIZE_512
ctx.is_keccak = true
_sha3.init(&ctx)
_sha3.update(&ctx, data)
@@ -220,12 +291,32 @@ hash_bytes_512 :: proc(data: []byte) -> [64]byte {
return hash
}
// hash_string_to_buffer_512 will hash the given input and assign the
// computed hash to the second parameter.
// It requires that the destination buffer is at least as big as the digest size
hash_string_to_buffer_512 :: proc(data: string, hash: []byte) {
hash_bytes_to_buffer_512(transmute([]byte)(data), hash);
}
// hash_bytes_to_buffer_512 will hash the given input and write the
// computed hash into the second parameter.
// It requires that the destination buffer is at least as big as the digest size
hash_bytes_to_buffer_512 :: proc(data, hash: []byte) {
assert(len(hash) >= DIGEST_SIZE_512, "Size of destination buffer is smaller than the digest size")
ctx: _sha3.Sha3_Context
ctx.mdlen = DIGEST_SIZE_512
ctx.is_keccak = true
_sha3.init(&ctx)
_sha3.update(&ctx, data)
_sha3.final(&ctx, hash)
}
// hash_stream_512 will read the stream in chunks and compute a
// hash from its contents
hash_stream_512 :: proc(s: io.Stream) -> ([64]byte, bool) {
hash: [64]byte
hash_stream_512 :: proc(s: io.Stream) -> ([DIGEST_SIZE_512]byte, bool) {
hash: [DIGEST_SIZE_512]byte
ctx: _sha3.Sha3_Context
ctx.mdlen = 64
ctx.mdlen = DIGEST_SIZE_512
ctx.is_keccak = true
_sha3.init(&ctx)
buf := make([]byte, 512)
@@ -243,7 +334,7 @@ hash_stream_512 :: proc(s: io.Stream) -> ([64]byte, bool) {
// hash_file_512 will read the file provided by the given handle
// and compute a hash
hash_file_512 :: proc(hd: os.Handle, load_at_once := false) -> ([64]byte, bool) {
hash_file_512 :: proc(hd: os.Handle, load_at_once := false) -> ([DIGEST_SIZE_512]byte, bool) {
if !load_at_once {
return hash_stream_512(os.stream_from_handle(hd))
} else {
@@ -251,7 +342,7 @@ hash_file_512 :: proc(hd: os.Handle, load_at_once := false) -> ([64]byte, bool)
return hash_bytes_512(buf[:]), ok
}
}
return [64]byte{}, false
return [DIGEST_SIZE_512]byte{}, false
}
hash_512 :: proc {
@@ -259,13 +350,15 @@ hash_512 :: proc {
hash_file_512,
hash_bytes_512,
hash_string_512,
hash_bytes_to_buffer_512,
hash_string_to_buffer_512,
}
/*
Low level API
*/
Sha3_Context :: _sha3.Sha3_Context
Keccak_Context :: _sha3.Sha3_Context
init :: proc(ctx: ^_sha3.Sha3_Context) {
ctx.is_keccak = true