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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/_sha3/sp800_185.odin
+9 -11
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@@ -3,7 +3,7 @@ package _sha3
import "core:encoding/endian"
import "core:math/bits"
init_cshake :: proc(ctx: ^Context, n, s: []byte, sec_strength: int) {
init_cshake :: proc "contextless" (ctx: ^Context, n, s: []byte, sec_strength: int) {
ctx.mdlen = sec_strength / 8
// No domain separator is equivalent to vanilla SHAKE.
@@ -18,7 +18,7 @@ init_cshake :: proc(ctx: ^Context, n, s: []byte, sec_strength: int) {
bytepad(ctx, [][]byte{n, s}, rate_cshake(sec_strength))
}
final_cshake :: proc(ctx: ^Context, dst: []byte, finalize_clone: bool = false) {
final_cshake :: proc "contextless" (ctx: ^Context, dst: []byte, finalize_clone: bool = false) {
ctx := ctx
if finalize_clone {
tmp_ctx: Context
@@ -32,7 +32,7 @@ final_cshake :: proc(ctx: ^Context, dst: []byte, finalize_clone: bool = false) {
shake_out(ctx, dst)
}
rate_cshake :: #force_inline proc(sec_strength: int) -> int {
rate_cshake :: #force_inline proc "contextless" (sec_strength: int) -> int {
switch sec_strength {
case 128:
return RATE_128
@@ -40,7 +40,7 @@ rate_cshake :: #force_inline proc(sec_strength: int) -> int {
return RATE_256
}
panic("crypto/sha3: invalid security strength")
panic_contextless("crypto/sha3: invalid security strength")
}
// right_encode and left_encode are defined to support 0 <= x < 2^2040
@@ -55,7 +55,7 @@ rate_cshake :: #force_inline proc(sec_strength: int) -> int {
@(private, rodata)
_PAD: [RATE_128]byte // Biggest possible value of w per spec.
bytepad :: proc(ctx: ^Context, x_strings: [][]byte, w: int) {
bytepad :: proc "contextless" (ctx: ^Context, x_strings: [][]byte, w: int) {
// 1. z = left_encode(w) || X.
z_hi: u64
z_lo := left_right_encode(ctx, 0, u64(w), true)
@@ -70,9 +70,7 @@ bytepad :: proc(ctx: ^Context, x_strings: [][]byte, w: int) {
// This isn't actually possible, at least with the currently
// defined SP 800-185 routines.
if carry != 0 {
panic("crypto/sha3: bytepad input length overflow")
}
ensure_contextless(carry == 0, "crypto/sha3: bytepad input length overflow")
}
// We skip this step as we are doing a byte-oriented implementation
@@ -95,7 +93,7 @@ bytepad :: proc(ctx: ^Context, x_strings: [][]byte, w: int) {
}
}
encode_string :: #force_inline proc(ctx: ^Context, s: []byte) -> (u64, u64) {
encode_string :: #force_inline proc "contextless" (ctx: ^Context, s: []byte) -> (u64, u64) {
l := encode_byte_len(ctx, len(s), true) // left_encode
update(ctx, s)
@@ -104,13 +102,13 @@ encode_string :: #force_inline proc(ctx: ^Context, s: []byte) -> (u64, u64) {
return hi, lo
}
encode_byte_len :: #force_inline proc(ctx: ^Context, l: int, is_left: bool) -> u64 {
encode_byte_len :: #force_inline proc "contextless" (ctx: ^Context, l: int, is_left: bool) -> u64 {
hi, lo := bits.mul_u64(u64(l), 8)
return left_right_encode(ctx, hi, lo, is_left)
}
@(private)
left_right_encode :: proc(ctx: ^Context, hi, lo: u64, is_left: bool) -> u64 {
left_right_encode :: proc "contextless" (ctx: ^Context, hi, lo: u64, is_left: bool) -> u64 {
HI_OFFSET :: 1
LO_OFFSET :: HI_OFFSET + 8
RIGHT_OFFSET :: LO_OFFSET + 8