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crypto/ecies: correctly return ErrInvalidMessage (#35037)

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cui 2026-05-27 22:30:03 +08:00 committed by GitHub
parent 14820029c9
commit 9d21f6ebd5
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GPG key ID: B5690EEEBB952194
1 changed files with 4 additions and 1 deletions
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5
crypto/ecies/ecies.go
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@ -254,9 +254,12 @@ func Encrypt(rand io.Reader, pub *PublicKey, m, s1, s2 []byte) (ct []byte, err e
Ke, Km := deriveKeys(hash, z, s1, params.KeyLen)
em, err := symEncrypt(rand, params, Ke, m)
if err != nil || len(em) <= params.BlockSize {
if err != nil {
return nil, err
}
if len(em) <= params.BlockSize {
return nil, ErrInvalidMessage
}
d := messageTag(params.Hash, Km, em, s2)