core/crypto/shake: API cleanup

- shake.Shake_Context -> shake.Context
This commit is contained in:
Yawning Angel
2023-11-17 17:27:14 +09:00
parent b8f9deb3d8
commit 7640fb0483
2 changed files with 64 additions and 72 deletions

View File

@@ -36,12 +36,11 @@ hash_string_128 :: proc(data: string) -> [DIGEST_SIZE_128]byte {
// computed hash
hash_bytes_128 :: proc(data: []byte) -> [DIGEST_SIZE_128]byte {
hash: [DIGEST_SIZE_128]byte
ctx: _sha3.Sha3_Context
ctx: Context
ctx.mdlen = DIGEST_SIZE_128
_sha3.init(&ctx)
_sha3.update(&ctx, data)
_sha3.shake_xof(&ctx)
_sha3.shake_out(&ctx, hash[:])
init(&ctx)
update(&ctx, data)
final(&ctx, hash[:])
return hash
}
@@ -56,32 +55,32 @@ hash_string_to_buffer_128 :: proc(data: string, hash: []byte) {
// 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_128 :: proc(data, hash: []byte) {
ctx: _sha3.Sha3_Context
ctx: Context
ctx.mdlen = DIGEST_SIZE_128
_sha3.init(&ctx)
_sha3.update(&ctx, data)
_sha3.shake_xof(&ctx)
_sha3.shake_out(&ctx, hash)
init(&ctx)
update(&ctx, data)
final(&ctx, hash)
}
// hash_stream_128 will read the stream in chunks and compute a
// hash from its contents
hash_stream_128 :: proc(s: io.Stream) -> ([DIGEST_SIZE_128]byte, bool) {
hash: [DIGEST_SIZE_128]byte
ctx: _sha3.Sha3_Context
ctx: Context
ctx.mdlen = DIGEST_SIZE_128
_sha3.init(&ctx)
init(&ctx)
buf := make([]byte, 512)
defer delete(buf)
read := 1
for read > 0 {
read, _ = io.read(s, buf)
if read > 0 {
_sha3.update(&ctx, buf[:read])
update(&ctx, buf[:read])
}
}
_sha3.shake_xof(&ctx)
_sha3.shake_out(&ctx, hash[:])
final(&ctx, hash[:])
return hash, true
}
@@ -117,12 +116,11 @@ hash_string_256 :: proc(data: string) -> [DIGEST_SIZE_256]byte {
// computed hash
hash_bytes_256 :: proc(data: []byte) -> [DIGEST_SIZE_256]byte {
hash: [DIGEST_SIZE_256]byte
ctx: _sha3.Sha3_Context
ctx: Context
ctx.mdlen = DIGEST_SIZE_256
_sha3.init(&ctx)
_sha3.update(&ctx, data)
_sha3.shake_xof(&ctx)
_sha3.shake_out(&ctx, hash[:])
init(&ctx)
update(&ctx, data)
final(&ctx, hash[:])
return hash
}
@@ -137,32 +135,32 @@ hash_string_to_buffer_256 :: proc(data: string, hash: []byte) {
// 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) {
ctx: _sha3.Sha3_Context
ctx: Context
ctx.mdlen = DIGEST_SIZE_256
_sha3.init(&ctx)
_sha3.update(&ctx, data)
_sha3.shake_xof(&ctx)
_sha3.shake_out(&ctx, hash)
init(&ctx)
update(&ctx, data)
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) -> ([DIGEST_SIZE_256]byte, bool) {
hash: [DIGEST_SIZE_256]byte
ctx: _sha3.Sha3_Context
ctx: Context
ctx.mdlen = DIGEST_SIZE_256
_sha3.init(&ctx)
init(&ctx)
buf := make([]byte, 512)
defer delete(buf)
read := 1
for read > 0 {
read, _ = io.read(s, buf)
if read > 0 {
_sha3.update(&ctx, buf[:read])
update(&ctx, buf[:read])
}
}
_sha3.shake_xof(&ctx)
_sha3.shake_out(&ctx, hash[:])
final(&ctx, hash[:])
return hash, true
}
@@ -192,17 +190,17 @@ hash_256 :: proc {
Low level API
*/
Shake_Context :: _sha3.Sha3_Context
Context :: _sha3.Sha3_Context
init :: proc(ctx: ^_sha3.Sha3_Context) {
init :: proc(ctx: ^Context) {
_sha3.init(ctx)
}
update :: proc(ctx: ^_sha3.Sha3_Context, data: []byte) {
update :: proc(ctx: ^Context, data: []byte) {
_sha3.update(ctx, data)
}
final :: proc(ctx: ^_sha3.Sha3_Context, hash: []byte) {
final :: proc(ctx: ^Context, hash: []byte) {
_sha3.shake_xof(ctx)
_sha3.shake_out(ctx, hash[:])
}

View File

@@ -33,11 +33,10 @@ hash_string_128 :: proc(data: string) -> [DIGEST_SIZE_128]byte {
// computed hash
hash_bytes_128 :: proc(data: []byte) -> [DIGEST_SIZE_128]byte {
hash: [DIGEST_SIZE_128]byte
ctx: botan.hash_t
botan.hash_init(&ctx, botan.HASH_SHAKE_128, 0)
botan.hash_update(ctx, len(data) == 0 ? nil : &data[0], uint(len(data)))
botan.hash_final(ctx, &hash[0])
botan.hash_destroy(ctx)
ctx: Context
init(&ctx, hash_size = 128)
update(&ctx, data)
final(&ctx, hash[:])
return hash
}
@@ -53,31 +52,29 @@ hash_string_to_buffer_128 :: proc(data: string, hash: []byte) {
// It requires that the destination buffer is at least as big as the digest size
hash_bytes_to_buffer_128 :: proc(data, hash: []byte) {
assert(len(hash) >= DIGEST_SIZE_128, "Size of destination buffer is smaller than the digest size")
ctx: botan.hash_t
botan.hash_init(&ctx, botan.HASH_SHAKE_128, 0)
botan.hash_update(ctx, len(data) == 0 ? nil : &data[0], uint(len(data)))
botan.hash_final(ctx, &hash[0])
botan.hash_destroy(ctx)
ctx: Context
init(&ctx, hash_size = 128)
update(&ctx, data)
final(&ctx, hash)
}
// hash_stream_128 will read the stream in chunks and compute a
// hash from its contents
hash_stream_128 :: proc(s: io.Stream) -> ([DIGEST_SIZE_128]byte, bool) {
hash: [DIGEST_SIZE_128]byte
ctx: botan.hash_t
botan.hash_init(&ctx, botan.HASH_SHAKE_128, 0)
ctx: Context
init(&ctx, hash_size = 128)
buf := make([]byte, 512)
defer delete(buf)
i := 1
for i > 0 {
i, _ = io.read(s, buf)
if i > 0 {
botan.hash_update(ctx, len(buf) == 0 ? nil : &buf[0], uint(i))
}
update(&ctx, buf[:i])
}
}
botan.hash_final(ctx, &hash[0])
botan.hash_destroy(ctx)
return hash, true
final(&ctx, hash[:])
return hash, true
}
// hash_file_128 will read the file provided by the given handle
@@ -112,11 +109,10 @@ hash_string_256 :: proc(data: string) -> [DIGEST_SIZE_256]byte {
// computed hash
hash_bytes_256 :: proc(data: []byte) -> [DIGEST_SIZE_256]byte {
hash: [DIGEST_SIZE_256]byte
ctx: botan.hash_t
botan.hash_init(&ctx, botan.HASH_SHAKE_256, 0)
botan.hash_update(ctx, len(data) == 0 ? nil : &data[0], uint(len(data)))
botan.hash_final(ctx, &hash[0])
botan.hash_destroy(ctx)
ctx: Context
init(&ctx, hash_size = 256)
update(&ctx, data)
final(&ctx, hash[:])
return hash
}
@@ -132,31 +128,29 @@ hash_string_to_buffer_256 :: proc(data: string, hash: []byte) {
// 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: botan.hash_t
botan.hash_init(&ctx, botan.HASH_SHAKE_256, 0)
botan.hash_update(ctx, len(data) == 0 ? nil : &data[0], uint(len(data)))
botan.hash_final(ctx, &hash[0])
botan.hash_destroy(ctx)
ctx: Context
init(&ctx, hash_size = 256)
update(&ctx, data)
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) -> ([DIGEST_SIZE_256]byte, bool) {
hash: [DIGEST_SIZE_256]byte
ctx: botan.hash_t
botan.hash_init(&ctx, botan.HASH_SHAKE_256, 0)
ctx: Context
init(&ctx, hash_size = 256)
buf := make([]byte, 512)
defer delete(buf)
i := 1
for i > 0 {
i, _ = io.read(s, buf)
if i > 0 {
botan.hash_update(ctx, len(buf) == 0 ? nil : &buf[0], uint(i))
}
update(&ctx, buf[:i])
}
}
botan.hash_final(ctx, &hash[0])
botan.hash_destroy(ctx)
return hash, true
final(&ctx, hash[:])
return hash, true
}
// hash_file_256 will read the file provided by the given handle
@@ -185,20 +179,20 @@ hash_256 :: proc {
Low level API
*/
Shake_Context :: botan.hash_t
Context :: botan.hash_t
init :: proc "contextless" (ctx: ^botan.hash_t, hash_size := 256) {
init :: proc "contextless" (ctx: ^Context, hash_size := 256) {
switch hash_size {
case 128: botan.hash_init(ctx, botan.HASH_SHAKE_128, 0)
case 256: botan.hash_init(ctx, botan.HASH_SHAKE_256, 0)
}
}
update :: proc "contextless" (ctx: ^botan.hash_t, data: []byte) {
update :: proc "contextless" (ctx: ^Context, data: []byte) {
botan.hash_update(ctx^, len(data) == 0 ? nil : &data[0], uint(len(data)))
}
final :: proc "contextless" (ctx: ^botan.hash_t, hash: []byte) {
final :: proc "contextless" (ctx: ^Context, hash: []byte) {
botan.hash_final(ctx^, &hash[0])
botan.hash_destroy(ctx^)
}