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core/crypto: Switch to using ensure

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This commit is contained in:
Yawning Angel
2025-03-23 19:14:33 +09:00
parent dc94452fb9
commit 2f301e46dc
36 changed files with 188 additions and 363 deletions
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core/crypto/_blake2/blake2.odin
+11 -17
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@@ -18,6 +18,8 @@ BLAKE2S_SIZE :: 32
BLAKE2B_BLOCK_SIZE :: 128
BLAKE2B_SIZE :: 64
MAX_SIZE :: 255
Blake2s_Context :: struct {
h: [8]u32,
t: [2]u32,
@@ -82,16 +84,13 @@ BLAKE2B_IV := [8]u64 {
0x1f83d9abfb41bd6b, 0x5be0cd19137e2179,
}
init :: proc(ctx: ^$T, cfg: ^Blake2_Config) {
init :: proc "contextless" (ctx: ^$T, cfg: ^Blake2_Config) {
when T == Blake2s_Context {
max_size :: BLAKE2S_SIZE
} else when T == Blake2b_Context {
max_size :: BLAKE2B_SIZE
}
if cfg.size > max_size {
panic("blake2: requested output size exceeeds algorithm max")
}
ensure_contextless(cfg.size <= max_size, "blake2: requested output size exceeeds algorithm max")
// To save having to allocate a scratch buffer, use the internal
// data buffer (`ctx.x`), as it is exactly the correct size.
@@ -167,8 +166,8 @@ init :: proc(ctx: ^$T, cfg: ^Blake2_Config) {
ctx.is_initialized = true
}
update :: proc(ctx: ^$T, p: []byte) {
assert(ctx.is_initialized)
update :: proc "contextless" (ctx: ^$T, p: []byte) {
ensure_contextless(ctx.is_initialized)
p := p
when T == Blake2s_Context {
@@ -195,8 +194,8 @@ update :: proc(ctx: ^$T, p: []byte) {
ctx.nx += copy(ctx.x[ctx.nx:], p)
}
final :: proc(ctx: ^$T, hash: []byte, finalize_clone: bool = false) {
assert(ctx.is_initialized)
final :: proc "contextless" (ctx: ^$T, hash: []byte, finalize_clone: bool = false) {
ensure_contextless(ctx.is_initialized)
ctx := ctx
if finalize_clone {
@@ -206,24 +205,19 @@ final :: proc(ctx: ^$T, hash: []byte, finalize_clone: bool = false) {
}
defer(reset(ctx))
ensure_contextless(len(hash) >= int(ctx.size), "crypto/blake2: invalid destination digest size")
when T == Blake2s_Context {
if len(hash) < int(ctx.size) {
panic("crypto/blake2s: invalid destination digest size")
}
blake2s_final(ctx, hash)
} else when T == Blake2b_Context {
if len(hash) < int(ctx.size) {
panic("crypto/blake2b: invalid destination digest size")
}
blake2b_final(ctx, hash)
}
}
clone :: proc(ctx, other: ^$T) {
clone :: proc "contextless" (ctx, other: ^$T) {
ctx^ = other^
}
reset :: proc(ctx: ^$T) {
reset :: proc "contextless" (ctx: ^$T) {
if !ctx.is_initialized {
return
}