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crypto.ecdsa: improves internal sign_digest routine #23960

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merged 2 commits into from
Mar 17, 2025
Merged

crypto.ecdsa: improves internal sign_digest routine #23960

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crypto.ecdsa: optimize nternal sign_digest routine
blackshirt Mar 17, 2025
10326a1
reformatted files
blackshirt Mar 17, 2025
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8 changes: 3 additions & 5 deletions vlib/crypto/ecdsa/ecdsa.v
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Original file line number Diff line number Diff line change
Expand Up @@ -363,14 +363,12 @@ fn sign_digest(key &C.EVP_PKEY, digest []u8) ![]u8 {
// siglen was used to store the size of the signature output. When EVP_PKEY_sign
// was called with NULL signature buffer, siglen will tell maximum size of signature.
siglen := usize(C.EVP_PKEY_size(key))
st := C.EVP_PKEY_sign(ctx, 0, &siglen, digest.data, digest.len)
if st <= 0 {
C.EVP_PKEY_CTX_free(ctx)
return error('Get null buffer length on EVP_PKEY_sign')
}
sig := []u8{len: int(siglen)}

// calls directly with sign
do := C.EVP_PKEY_sign(ctx, sig.data, &siglen, digest.data, digest.len)
if do <= 0 {
unsafe { sig.free() }
C.EVP_PKEY_CTX_free(ctx)
return error('EVP_PKEY_sign fails to sign message')
}
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