diff options
Diffstat (limited to 'crypto/src')
| -rw-r--r-- | crypto/src/crypto/modes/CfbBlockCipher.cs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/crypto/src/crypto/modes/CfbBlockCipher.cs b/crypto/src/crypto/modes/CfbBlockCipher.cs index 433716535..ed0be407a 100644 --- a/crypto/src/crypto/modes/CfbBlockCipher.cs +++ b/crypto/src/crypto/modes/CfbBlockCipher.cs @@ -29,6 +29,9 @@ namespace Org.BouncyCastle.Crypto.Modes IBlockCipher cipher, int bitBlockSize) { + if (bitBlockSize < 8 || (bitBlockSize & 7) != 0) + throw new ArgumentException("CFB" + bitBlockSize + " not supported", "bitBlockSize"); + this.cipher = cipher; this.blockSize = bitBlockSize / 8; this.IV = new byte[cipher.GetBlockSize()]; |