paddingschemes

A collection of encryption and signature padding schemes

paddingschemes.MGF1(seed, maskBytes, hashFn, hLen)

MGF1 Mask Generation Function

Implemented according to PKCS #1 specification, see appendix B.2.1:

Parameters:

• hLen: is the output length of the hash function
• maskBytes: the number of mask bytes to return

class paddingschemes.OAEPEncryptionPadding(_hash_type='sha1')

Bases: object

Authors:Gary Belvin

OAEPEncryptionPadding

Implements the OAEP padding scheme. Appropriate for RSA-OAEP encryption. Implemented according to PKCS#1 v2.1 Section 7 ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1.pdf

decode(encMessage, label='')

encode(message, emLen, label='', seed=None)

Return:a Bytes object

class paddingschemes.PKCS7Padding(block_size=16)

Bases: object

decode(_bytes)

encode(_bytes, block_size=16)

class paddingschemes.PSSPadding(_hash_type='sha1')

Bases: object

Authors:Gary Belvin

PSSSignaturePadding

Implements the PSS signature padding scheme. Appropriate for RSA-PSS signing. Implemented according to section 8 of ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1.pdf.

encode(M, emBits=None, salt=None)

Encodes a message with PSS padding emLen will be set to the minimum allowed length if not explicitly set

verify(M, EM, emBits=None)

Verifies that EM is a correct encoding for M

Parameters:

• M - the message to verify
• EM - the encoded message

Return:

true for ‘consistent’ or false for ‘inconsistent’

class paddingschemes.SAEPEncryptionPadding(_hash_type='sha384')

Bases: object

Authors:Christina Garman

SAEPEncryptionPadding

decode(encMessage, n, s0)

encode(message, n, s0)

class paddingschemes.hashFunc(_hash_type=None)

Bases: object