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Fix decryption padding error

This commit is contained in:
ekzyis 2023-12-22 17:51:24 +01:00
parent 9a3bf5d669
commit 701723d6a7
1 changed files with 2 additions and 3 deletions
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5
nip44.go
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@ -118,12 +118,11 @@ func Decrypt(conversationKey []byte, ciphertext string) (string, error) {
return "", err
}
unpaddedLen = binary.BigEndian.Uint16(padded[0:2])
if unpaddedLen < uint16(MinPlaintextSize) || unpaddedLen > uint16(MaxPlaintextSize) ||
len(unpadded) == 0 || len(unpadded) != int(unpaddedLen) || len(padded) != 2+calcPadding(int(unpaddedLen)) {
if unpaddedLen < uint16(MinPlaintextSize) || unpaddedLen > uint16(MaxPlaintextSize) || len(padded) != 2+calcPadding(int(unpaddedLen)) {
return "", errors.New("invalid padding")
}
unpadded = padded[2 : unpaddedLen+2]
if len(unpadded) == 0 || len(unpadded) != int(unpaddedLen) || len(padded) != 2+calcPadding(int(unpaddedLen)) {
if len(unpadded) == 0 || len(unpadded) != int(unpaddedLen) {
return "", errors.New("invalid padding")
}
return string(unpadded), nil