def encrypt(mess_str, key_str):
"""
Do encryption from string and return string.
"""
# generating key list (K1...K32)
key = cryptBlocks.getBlockFromString(key_str)
# splitting message to blocks
mess = cryptBlocks.getBlocksFromString(mess_str, blockSize)
# for enable encrypting empty message%)
if len(mess) == 0:
mess.append(0x00)
return cryptBlocks.getStringFromBlocks(cryptBlockList(mess, key))
def getHash(src):
"""
Main function - calculates hash of the given blocks.
"""
# wtf?! 256 bit, 32 byte! its amazin
blockLength = 32
mess = cryptBlocks.getBlocksFromString(src, blockLength)
checksumE = 0
# size of message modulo 2^256
lengthL = 0
stepH = 0
if makeReport:
i = 0
for m in mess:
if makeReport:
i += 1
reporter.addBold("Variables list for block N%d "%(i))
reporter.addList(["m = "+hex(m),"H = "+hex(stepH),"L = "+hex(lengthL),"E = "+hex(checksumE)])
stepH = stepFunction(stepH, m)
lengthL = (lengthL + cryptBlocks.getSizeOfBlock(m))%(2**(blockLength*8))
checksumE += (checksumE + m)%(2**(blockLength*8))
stepH = stepFunction(stepH, lengthL)
stepH = stepFunction(stepH, checksumE)
return stepH
