A transformation string is provided to initialize a Cipher object.
A transformation always includes the name of a cryptographic algorithm and
may be followed by a feedback mode and padding scheme. It is of the form:
"algorithm/mode/padding" or ·
"algorithm"
The supported padding schemes are:
NoPadding
PKCS7Padding
PKCS5Padding (default for symmetric
ciphers)
PKCS7Padding and PKCS5Padding are
the same algorithm. Both use the same native padding implementation CPaddingPKCS7.
The supported algorithm modes are: ·
ECB (default for symmetric ciphers)
CBC
NONE
The supported algorithms are listed in the table below. DES, AES, RC2 and DESede are symmetric ciphers and RSA is asymmetric cipher.