Cryptography

The cryptographic functions are described below.

• AESDecrypt( str key, buf data ) buf

• AESEncrypt( str key, buf data ) buf

• Md5( buf | str data ) buf

• RandomBuf( int size ) buf

• Sha256( buf | str data ) buf

Functions

AESDecrypt( str key, buf data ) buf

The AESDecrypt function decrypts the content of the buf variable using the key encryption key. The encrypted data must be obtained using the AESEncrypt function. The function returns a variable of the buf type with decrypted data.

buf encrypted = AESDecrypt(`my password`, encrypted)

AESEncrypt( str key, buf data ) buf

The AESEncrypt function encrypts the content of a buf variable using the AES-256 algorithm. The key parameter is an encryption key. The function returns a variable of buf type with encrypted data. Use the AESDecrypt function to decrypt the data.

buf crypted = AESEncrypt(`my password`, buf(`Test message`))

Md5(buf|str data) buf

The Md5 function returns MD5 hash of the buf or str type variable.

RandomBuf(int size) buf

The RandomBuf function returns a variable of the buf type that contains a sequence of random bytes of the specified size.

Sha256(buf|str data) buf

The Sha256 function returns SHA5 hash of the buf or str type variable.