CCCryptorMBS.kCCKeySizeMaxRC4 = 512

RC4 maximum key size.
CAST and RC4 have variable key sizes.

CCCryptorMBS.kCCKeySizeMinBlowfish = 8

Minimum key size for blowfish.

CCCryptorMBS.kCCKeySizeMinCAST = 5

CAST minimum key size.
CAST and RC4 have variable key sizes.

CCCryptorMBS.kCCKeySizeMinRC2 = 1

RC2 minimum key size.
CAST and RC4 have variable key sizes.

CCCryptorMBS.kCCKeySizeMinRC4 = 1

RC4 minimum key size.
CAST and RC4 have variable key sizes.

CCCryptorMBS.kCCMemoryFailure = -4302

Memory allocation failure.

CCCryptorMBS.kCCOptionCBCMode = 0

Cipher Block Chaining Mode. Default is CBC.

CCCryptorMBS.kCCOptionECBMode = 2

Electronic Code Book Mode. Default is CBC.
Stream ciphers currently have no options

CCCryptorMBS.kCCOptionPKCS7Padding = 1

// initialize
dim h as new CCCryptorMBS(CCCryptorMBS.kCCEncrypt, CCCryptorMBS.kCCAlgorithmAES128, CCCryptorMBS.kCCOptionPKCS7Padding, "Hello12312345678")

if h.Lasterror<>0 then break

// destination memoryblock

dim m as new MemoryBlock(100)
dim Position as Uint64 = 0
dim BytesLeft as UInt64 = m.Size

// add a few bytes
dim q as UInt64 = 0

// due to padding, we don't need to pass a multiple of block size
h.Update "Hello World!", m, BytesLeft, q
if h.Lasterror<>0 then break

Position = Position + q
BytesLeft = BytesLeft - q

// now finalize:
q = 0

dim dp as ptr = m.AddressPtrMBS(Position)

h.Final dp, BytesLeft, q
if h.Lasterror<>0 then break

Position = Position + q
BytesLeft = BytesLeft - q

// and show result
dim d as string = m.StringValue(0, Position)
MsgBox EncodingToHexMBS(d)

Perform PKCS7 padding.
Stream ciphers currently have no options

CCCryptorMBS.kCCOverflow = -4306

Buffer overflow.

CCCryptorMBS.kCCParamError = -4300

Illegal parameter value.

CCCryptorMBS.kCCRNGFailure = -4307

Random number generator failed.

CCCryptorMBS.kCCSuccess = 0

Operation completed normally.

CCCryptorMBS.kCCUnimplemented = -4305

Function not implemented for the current algorithm.

CCCryptorMBS.kCCUnspecifiedError = -4308

An error occurred, but not matching one of the other error codes.