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crypto: make digest implement io.Writer (#8975)

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zakuro 2021-02-26 15:24:47 +09:00 • committed by GitHub
parent d81b6e7805
commit bc0507590e
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4 changed files with 22 additions and 22 deletions
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12
vlib/crypto/sha256/sha256.v
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@ -90,7 +90,7 @@ pub fn new224() &Digest {
}
// write writes the contents of `p_` to the internal hash representation.
fn (mut d Digest) write(p_ []byte) int {
fn (mut d Digest) write(p_ []byte) ?int {
unsafe {
mut p := p_
nn := p.len
@ -147,14 +147,14 @@ fn (mut d Digest) checksum() []byte {
mut tmp := []byte{len: (64)}
tmp[0] = 0x80
if int(len) % 64 < 56 {
d.write(tmp[..56 - int(len) % 64])
d.write(tmp[..56 - int(len) % 64]) or { panic(err) }
} else {
d.write(tmp[..64 + 56 - int(len) % 64])
d.write(tmp[..64 + 56 - int(len) % 64]) or { panic(err) }
}
// Length in bits.
len <<= u64(3)
binary.big_endian_put_u64(mut tmp, len)
d.write(tmp[..8])
d.write(tmp[..8]) or { panic(err) }
if d.nx != 0 {
panic('d.nx != 0')
}
@ -181,14 +181,14 @@ pub fn sum(data []byte) []byte {
// sum256 returns the SHA256 checksum of the data.
pub fn sum256(data []byte) []byte {
mut d := new()
d.write(data)
d.write(data) or { panic(err) }
return d.checksum()
}
// sum224 returns the SHA224 checksum of the data.
pub fn sum224(data []byte) []byte {
mut d := new224()
d.write(data)
d.write(data) or { panic(err) }
sum := d.checksum()
sum224 := []byte{len: (size224)}
copy(sum224, sum[..size224])