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Yawning / gist:4cca041c456ccf113700
Created Dec 23, 2014
Don't use GMPY rand for key generation, ever.
View gist:4cca041c456ccf113700
#!/usr/bin/env python2
# Extract the "improved" key generation code from cryptowrapper.py
# and tunnelcrypto.py, as of: a623e25e10e5e96ea1d5b85853b23bea00ee439f
from gmpy import mpz, rand
DIFFIE_HELLMAN_MODULUS = mpz(0xFFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF)
rand('init', 128)
@Yawning
Yawning / gist:330f55df5638577dd5cd
Created Jul 10, 2014
gpg2 patch to support RSA keys > 16384 bits
View gist:330f55df5638577dd5cd
diff -uNr gnupg-2.0.22/g10/gpg.c gnupg-2.0.22-large-keys/g10/gpg.c
--- gnupg-2.0.22/g10/gpg.c 2013-10-04 12:32:53.000000000 +0000
+++ gnupg-2.0.22-large-keys/g10/gpg.c 2013-10-26 22:14:18.933010862 +0000
@@ -2050,7 +2050,7 @@
#endif
/* Initialize the secure memory. */
- if (!gcry_control (GCRYCTL_INIT_SECMEM, 32768, 0))
+ if (!gcry_control (GCRYCTL_INIT_SECMEM, 131072, 0))
got_secmem = 1;
View gist:9515778
import twisted.trial.unittest
import obfsproxy.common.ctr_drbg as ctr_drbg
import binascii
import math
import struct
class testCtrDrbg_NIST(twisted.trial.unittest.TestCase):
"""
@Yawning
Yawning / gist:9501996
Created Mar 12, 2014
Python CTR_DRBG (CTR-AES-128)
View gist:9501996
""" NIST SP 800-90A style CTR_DRBG, using CTR-AES-128. """
import obfsproxy.common.aes as aes
import binascii
import os
import random
class CtrDrbg(random.Random):
"""