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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/tiger2/tiger2.odin
+88 -21
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@@ -19,16 +19,20 @@ import "../_tiger"
High level API
*/
DIGEST_SIZE_128 :: 16
DIGEST_SIZE_160 :: 20
DIGEST_SIZE_192 :: 24
// hash_string_128 will hash the given input and return the
// computed hash
hash_string_128 :: proc(data: string) -> [16]byte {
hash_string_128 :: proc(data: string) -> [DIGEST_SIZE_128]byte {
return hash_bytes_128(transmute([]byte)(data))
}
// hash_bytes_128 will hash the given input and return the
// computed hash
hash_bytes_128 :: proc(data: []byte) -> [16]byte {
hash: [16]byte
hash_bytes_128 :: proc(data: []byte) -> [DIGEST_SIZE_128]byte {
hash: [DIGEST_SIZE_128]byte
ctx: _tiger.Tiger_Context
ctx.ver = 2
_tiger.init(&ctx)
@@ -37,10 +41,29 @@ hash_bytes_128 :: proc(data: []byte) -> [16]byte {
return hash
}
// hash_string_to_buffer_128 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_128 :: proc(data: string, hash: []byte) {
hash_bytes_to_buffer_128(transmute([]byte)(data), hash);
}
// hash_bytes_to_buffer_128 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_128 :: proc(data, hash: []byte) {
assert(len(hash) >= DIGEST_SIZE_128, "Size of destination buffer is smaller than the digest size")
ctx: _tiger.Tiger_Context
ctx.ver = 2
_tiger.init(&ctx)
_tiger.update(&ctx, data)
_tiger.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) -> ([16]byte, bool) {
hash: [16]byte
hash_stream_128 :: proc(s: io.Stream) -> ([DIGEST_SIZE_128]byte, bool) {
hash: [DIGEST_SIZE_128]byte
ctx: _tiger.Tiger_Context
ctx.ver = 2
_tiger.init(&ctx)
@@ -59,7 +82,7 @@ hash_stream_128 :: proc(s: io.Stream) -> ([16]byte, bool) {
// hash_file_128 will read the file provided by the given handle
// and compute a hash
hash_file_128 :: proc(hd: os.Handle, load_at_once := false) -> ([16]byte, bool) {
hash_file_128 :: proc(hd: os.Handle, load_at_once := false) -> ([DIGEST_SIZE_128]byte, bool) {
if !load_at_once {
return hash_stream_128(os.stream_from_handle(hd))
} else {
@@ -67,7 +90,7 @@ hash_file_128 :: proc(hd: os.Handle, load_at_once := false) -> ([16]byte, bool)
return hash_bytes_128(buf[:]), ok
}
}
return [16]byte{}, false
return [DIGEST_SIZE_128]byte{}, false
}
hash_128 :: proc {
@@ -75,18 +98,20 @@ hash_128 :: proc {
hash_file_128,
hash_bytes_128,
hash_string_128,
hash_bytes_to_buffer_128,
hash_string_to_buffer_128,
}
// hash_string_160 will hash the given input and return the
// computed hash
hash_string_160 :: proc(data: string) -> [20]byte {
hash_string_160 :: proc(data: string) -> [DIGEST_SIZE_160]byte {
return hash_bytes_160(transmute([]byte)(data))
}
// hash_bytes_160 will hash the given input and return the
// computed hash
hash_bytes_160 :: proc(data: []byte) -> [20]byte {
hash: [20]byte
hash_bytes_160 :: proc(data: []byte) -> [DIGEST_SIZE_160]byte {
hash: [DIGEST_SIZE_160]byte
ctx: _tiger.Tiger_Context
ctx.ver = 2
_tiger.init(&ctx)
@@ -95,10 +120,29 @@ hash_bytes_160 :: proc(data: []byte) -> [20]byte {
return hash
}
// hash_string_to_buffer_160 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_160 :: proc(data: string, hash: []byte) {
hash_bytes_to_buffer_160(transmute([]byte)(data), hash);
}
// hash_bytes_to_buffer_160 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_160 :: proc(data, hash: []byte) {
assert(len(hash) >= DIGEST_SIZE_160, "Size of destination buffer is smaller than the digest size")
ctx: _tiger.Tiger_Context
ctx.ver = 2
_tiger.init(&ctx)
_tiger.update(&ctx, data)
_tiger.final(&ctx, hash)
}
// hash_stream_160 will read the stream in chunks and compute a
// hash from its contents
hash_stream_160 :: proc(s: io.Stream) -> ([20]byte, bool) {
hash: [20]byte
hash_stream_160 :: proc(s: io.Stream) -> ([DIGEST_SIZE_160]byte, bool) {
hash: [DIGEST_SIZE_160]byte
ctx: _tiger.Tiger_Context
ctx.ver = 2
_tiger.init(&ctx)
@@ -117,7 +161,7 @@ hash_stream_160 :: proc(s: io.Stream) -> ([20]byte, bool) {
// hash_file_160 will read the file provided by the given handle
// and compute a hash
hash_file_160 :: proc(hd: os.Handle, load_at_once := false) -> ([20]byte, bool) {
hash_file_160 :: proc(hd: os.Handle, load_at_once := false) -> ([DIGEST_SIZE_160]byte, bool) {
if !load_at_once {
return hash_stream_160(os.stream_from_handle(hd))
} else {
@@ -125,7 +169,7 @@ hash_file_160 :: proc(hd: os.Handle, load_at_once := false) -> ([20]byte, bool)
return hash_bytes_160(buf[:]), ok
}
}
return [20]byte{}, false
return [DIGEST_SIZE_160]byte{}, false
}
hash_160 :: proc {
@@ -133,18 +177,20 @@ hash_160 :: proc {
hash_file_160,
hash_bytes_160,
hash_string_160,
hash_bytes_to_buffer_160,
hash_string_to_buffer_160,
}
// hash_string_192 will hash the given input and return the
// computed hash
hash_string_192 :: proc(data: string) -> [24]byte {
hash_string_192 :: proc(data: string) -> [DIGEST_SIZE_192]byte {
return hash_bytes_192(transmute([]byte)(data))
}
// hash_bytes_192 will hash the given input and return the
// computed hash
hash_bytes_192 :: proc(data: []byte) -> [24]byte {
hash: [24]byte
hash_bytes_192 :: proc(data: []byte) -> [DIGEST_SIZE_192]byte {
hash: [DIGEST_SIZE_192]byte
ctx: _tiger.Tiger_Context
ctx.ver = 2
_tiger.init(&ctx)
@@ -153,10 +199,29 @@ hash_bytes_192 :: proc(data: []byte) -> [24]byte {
return hash
}
// hash_string_to_buffer_192 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_192 :: proc(data: string, hash: []byte) {
hash_bytes_to_buffer_192(transmute([]byte)(data), hash);
}
// hash_bytes_to_buffer_192 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_192 :: proc(data, hash: []byte) {
assert(len(hash) >= DIGEST_SIZE_192, "Size of destination buffer is smaller than the digest size")
ctx: _tiger.Tiger_Context
ctx.ver = 2
_tiger.init(&ctx)
_tiger.update(&ctx, data)
_tiger.final(&ctx, hash)
}
// hash_stream_192 will read the stream in chunks and compute a
// hash from its contents
hash_stream_192 :: proc(s: io.Stream) -> ([24]byte, bool) {
hash: [24]byte
hash_stream_192 :: proc(s: io.Stream) -> ([DIGEST_SIZE_192]byte, bool) {
hash: [DIGEST_SIZE_192]byte
ctx: _tiger.Tiger_Context
ctx.ver = 2
_tiger.init(&ctx)
@@ -175,7 +240,7 @@ hash_stream_192 :: proc(s: io.Stream) -> ([24]byte, bool) {
// hash_file_192 will read the file provided by the given handle
// and compute a hash
hash_file_192 :: proc(hd: os.Handle, load_at_once := false) -> ([24]byte, bool) {
hash_file_192 :: proc(hd: os.Handle, load_at_once := false) -> ([DIGEST_SIZE_192]byte, bool) {
if !load_at_once {
return hash_stream_192(os.stream_from_handle(hd))
} else {
@@ -183,7 +248,7 @@ hash_file_192 :: proc(hd: os.Handle, load_at_once := false) -> ([24]byte, bool)
return hash_bytes_192(buf[:]), ok
}
}
return [24]byte{}, false
return [DIGEST_SIZE_192]byte{}, false
}
hash_192 :: proc {
@@ -191,6 +256,8 @@ hash_192 :: proc {
hash_file_192,
hash_bytes_192,
hash_string_192,
hash_bytes_to_buffer_192,
hash_string_to_buffer_192,
}
/*