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Added signing and validation to rnid

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This commit is contained in:
Mark Qvist 2023-02-02 19:02:05 +01:00
parent f4241ae9c2
commit 08e480387b
1 changed files with 121 additions and 6 deletions
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127
RNS/Utilities/rnid.py
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@ -27,6 +27,7 @@ import argparse
import time
import sys
import os
import base64
from RNS._version import __version__
@ -66,10 +67,10 @@ def main():
parser.add_argument("-v", "--verbose", action="count", default=0, help="increase verbosity")
parser.add_argument("-q", "--quiet", action="count", default=0, help="decrease verbosity")
parser.add_argument("-e", "--encrypt", action="store_true", default=False, help="encrypt data")
parser.add_argument("-d", "--decrypt", action="store_true", default=None, help="decrypt data")
parser.add_argument("-s", "--sign", action="store_true", default=None, help="sign data")
parser.add_argument("-V", "--verify", action="store_true", default=None, help="verify signature")
parser.add_argument("-e", "--encrypt", metavar="path", action="store", default=None, help="encrypt file")
parser.add_argument("-d", "--decrypt", metavar="path", action="store", default=None, help="decrypt file")
parser.add_argument("-s", "--sign", metavar="path", action="store", default=None, help="sign file")
parser.add_argument("-V", "--validate", metavar="path", action="store", default=None, help="validate signature")
parser.add_argument("-r", "--read", metavar="path", action="store", default=None, help="input file path", type=str)
parser.add_argument("-w", "--write", metavar="path", action="store", default=None, help="output file path", type=str)
@ -82,14 +83,14 @@ def main():
parser.add_argument("-p", "--print-identity", action="store_true", default=False, help="print identity info and exit")
parser.add_argument("-P", "--print-private", action="store_true", default=False, help="allow displaying private keys")
parser.add_argument("-b", "--base64", action="store_true", default=False, help="Use base64-encoded input and output")
parser.add_argument("-b", "--base64", action="store_true", default=False, help=argparse.SUPPRESS) # help="Use base64-encoded input and output")
parser.add_argument("--version", action="version", version="rncp {version}".format(version=__version__))
args = parser.parse_args()
ops = 0;
for t in [args.encrypt, args.decrypt, args.verify, args.sign]:
for t in [args.encrypt, args.decrypt, args.validate, args.sign]:
if t:
ops += 1
@ -97,6 +98,14 @@ def main():
RNS.log("This utility currently only supports one of the encrypt, decrypt, sign or verify operations per invocation", RNS.LOG_ERROR)
exit(1)
if not args.read:
if args.encrypt:
args.read = args.encrypt
if args.decrypt:
args.read = args.decrypt
if args.sign:
args.read = args.sign
identity_str = args.i
if not identity_str:
print("\nNo identity provided, cannot continue\n")
@ -175,6 +184,18 @@ def main():
RNS.log("Private Key : Hidden")
exit(0)
if args.validate:
if not args.read and args.validate.lower().endswith("."+SIG_EXT):
args.read = str(args.validate).replace("."+SIG_EXT, "")
if not os.path.isfile(args.validate):
RNS.log("Signature file "+str(args.read)+" not found", RNS.LOG_ERROR)
exit(7)
if not os.path.isfile(args.read):
RNS.log("Input file "+str(args.read)+" not found", RNS.LOG_ERROR)
exit(7)
data_input = None
if args.read:
if not os.path.isfile(args.read):
@ -201,6 +222,13 @@ def main():
if args.decrypt and not args.write and not args.stdout and args.read and args.read.lower().endswith("."+ENCRYPT_EXT):
args.write = str(args.read).replace("."+ENCRYPT_EXT, "")
if args.sign and identity.prv == None:
RNS.log("Specified Identity does not hold a private key. Cannot sign.", RNS.LOG_ERROR)
exit(13)
if args.sign and not args.write and not args.stdout and args.read:
args.write = str(args.read)+"."+SIG_EXT
if args.write:
if not args.force and os.path.isfile(args.write):
RNS.log("Output file "+str(args.write)+" already exists. Not overwriting.", RNS.LOG_ERROR)
@ -219,6 +247,93 @@ def main():
# elif args.stdout:
# data_output = sys.stdout
if args.sign:
if identity.prv == None:
RNS.log("Specified Identity does not hold a private key. Cannot sign.", RNS.LOG_ERROR)
exit(13)
if not data_input:
if not args.stdout:
RNS.log("Signing requested, but no input data specified", RNS.LOG_ERROR)
exit(10)
else:
if not data_output:
if not args.stdout:
RNS.log("Signing requested, but no output specified", RNS.LOG_ERROR)
exit(11)
if not args.stdout:
RNS.log("Signing "+str(args.read))
try:
data_output.write(identity.sign(data_input.read()))
data_output.close()
data_input.close()
if not args.stdout:
if args.read:
RNS.log("File "+str(args.read)+" signed with "+str(identity)+" to "+str(args.write))
exit(0)
except Exception as e:
if not args.stdout:
RNS.log("An error ocurred while encrypting data.", RNS.LOG_ERROR)
RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
try:
data_output.close()
except:
pass
try:
data_input.close()
except:
pass
exit(12)
if args.validate:
if not data_input:
if not args.stdout:
RNS.log("Signature verification requested, but no input data specified", RNS.LOG_ERROR)
exit(10)
else:
# if not args.stdout:
# RNS.log("Verifying "+str(args.validate)+" for "+str(args.read))
try:
try:
sig_input = open(args.validate, "rb")
except Exception as e:
RNS.log("An error ocurred while opening "+str(args.validate)+".", RNS.LOG_ERROR)
RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
exit(15)
validated = identity.validate(sig_input.read(), data_input.read())
sig_input.close()
data_input.close()
if not validated:
if not args.stdout:
RNS.log("Signature "+str(args.validate)+" for file "+str(args.read)+" is invalid", RNS.LOG_ERROR)
exit(16)
else:
if not args.stdout:
RNS.log("Signature "+str(args.validate)+" for file "+str(args.read)+" made by Identity "+str(identity)+" is valid")
exit(0)
except Exception as e:
if not args.stdout:
RNS.log("An error ocurred while validating signature.", RNS.LOG_ERROR)
RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
try:
data_output.close()
except:
pass
try:
data_input.close()
except:
pass
exit(12)
if args.encrypt:
if not data_input:
if not args.stdout: