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crypto: use new copy & clone

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This commit is contained in:
joe-conigliaro
2019-07-30 00:33:35 +10:00
committed by Alexander Medvednikov
parent 6701c3b263
commit d87030972e
7 changed files with 60 additions and 86 deletions
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12
vlib/crypto/aes/aes_cbc.v
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@@ -30,8 +30,7 @@ fn _new_cbc(b AesCipher, iv []byte) AesCbc {
return AesCbc{
b: b,
block_size: b.block_size(),
// TODO: make b.iv copy of iv
iv: iv,
iv: iv.clone(),
tmp: [byte(0); b.block_size()],
}
}
@@ -77,8 +76,7 @@ pub fn (x &AesCbc) encrypt_blocks(dst, src []byte) {
}
// Save the iv for the next crypt_blocks call.
// TODO: make x.iv a copy of iv
x.iv = iv
copy(x.iv, iv)
}
pub fn (x &AesCbc) decrypt_blocks(dst, src []byte) {
@@ -102,8 +100,7 @@ pub fn (x &AesCbc) decrypt_blocks(dst, src []byte) {
mut prev := start - x.block_size
// Copy the last block of ciphertext in preparation as the new iv.
// TODO: copy
x.tmp = src.slice(start, end)
copy(x.tmp, src.slice(start, end))
// Loop over all but the first block.
for start > 0 {
@@ -129,6 +126,5 @@ fn (x &AesCbc) set_iv(iv []byte) {
if iv.len != x.iv.len {
panic('cipher: incorrect length IV')
}
// TODO: make x.iv a copy of iv
x.iv = iv
copy(x.iv, iv)
}