def RSAdecodeSign(filename): # type: (filename) -> (n, sign)
integers = [] # list of integers in ASN.1 file
with open(filename, "rb") as file:
data = file.read()
decoder = asn1.Decoder()
decoder.start(data)
integers = parse(decoder, integers)
return integers[0], integers[2]
def ELGdecodeSign(filename): # type: (filename) -> (b, p, r, a, w, s)
integers = [] # list of integers in ASN.1 file
with open(filename, "rb") as file:
data = file.read()
decoder = asn1.Decoder()
decoder.start(data)
integers = parse(decoder, integers)
return integers
def MOdecodeMessage(data): # type: (data) -> (len, encrypted)
integers = [] # list of integers in ASN.1 file
decoder = asn1.Decoder()
decoder.start(data)
integers = parse(decoder, integers)
cipher = data[
-integers[-1]:] # get last integrs[last] symbols, this is ciphertext
return integers[0], cipher
def RSAdecode(filename): # type: (filename) -> (n, e, c, ciphertext)
integers = [] # list of integers in ASN.1 file
with open(filename, "rb") as file:
data = file.read()
decoder = asn1.Decoder()
decoder.start(data)
integers = parse(decoder, integers)
cipher = data[-integers[
-1]:] # get last integrs[last] symbols, this is ciphertext
return integers[0], integers[1], integers[2], cipher
def GOSTdecodeSign(
filename
): # type: (filename) -> (xq, yq, prime, A, B, xp, yp, q, r, s)
integers = [] # list of integers in ASN.1 file
with open(filename, "rb") as file:
data = file.read()
decoder = asn1.Decoder()
decoder.start(data)
integers = parse(decoder, integers)
return integers
def MOdecodeResponse(data): # type: (data) -> t_ab
integers = [] # list of integers in ASN.1 file
decoder = asn1.Decoder()
decoder.start(data)
integers = parse(decoder, integers)
return integers[0]
def MOdecodeParams(data): # type: (data) -> (p, r, t_a)
integers = [] # list of integers in ASN.1 file
decoder = asn1.Decoder()
decoder.start(data)
integers = parse(decoder, integers)
return integers[0], integers[1], integers[2]