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Merge pull request #2 from ben-turner/patch-1

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Check blocksize before retrieving Salt Header
This commit is contained in:
Knut Ahlers 2017-04-04 23:39:59 +02:00 committed by GitHub
commit 2ef3173d65
1 changed files with 3 additions and 0 deletions
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3
openssl.go
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@ -37,6 +37,9 @@ func (o *OpenSSL) DecryptString(passphrase, encryptedBase64String string) ([]byt
if err != nil { if err != nil {
return nil, err return nil, err
} }
if len(data) < aes.BlockSize {
return nil, fmt.Errorf("Data is too short")
}
saltHeader := data[:aes.BlockSize] saltHeader := data[:aes.BlockSize]
if string(saltHeader[:8]) != o.openSSLSaltHeader { if string(saltHeader[:8]) != o.openSSLSaltHeader {
return nil, fmt.Errorf("Does not appear to have been encrypted with OpenSSL, salt header missing.") return nil, fmt.Errorf("Does not appear to have been encrypted with OpenSSL, salt header missing.")