t_ver.py

It is an experimental testing for python M2Crypto module. M2Crypto is not well document. User may no

from M2Crypto import RSA, EVP, Rand
import time,sys

def test1(keyfn):
    key = RSA.load_pub_key(keyfn)
    for i in range(512):
        f=open('testv/sig%03d' % i, 'rb')
        sig = f.read()
        f.close()
        f=open('testv/msg%03d' % i, 'rb')
        msg = f.read()
        f.close()
        shax = EVP.MessageDigest('sha256')
        shax.update(msg)
        dig = shax.digest()
        res = key.verify(dig,sig,algo='sha256')
        print '%d res:%d' % (i, res)

def test2(keyfn):
    key = RSA.load_pub_key(keyfn)
    sigs=[]
    msgs=[]
    for i in range(512):
        f=open('testv/sig%03d' % i, 'rb')
        sigs.append(f.read())
        f.close()
        f=open('testv/msg%03d' % i, 'rb')
        msgs.append(f.read())
        f.close()
        
    t1 = time.time()
    print t1
    n=0
    i=0
    while 1:
        shax = EVP.MessageDigest('sha256')
        shax.update(msgs[i])
        dig = shax.digest()
        res = key.verify(dig,sigs[i],algo='sha256')
        t2 = time.time()
        if t2-t1 > 10:
            break
        n+=1
        i+=1
        if i > 511:
            i=0
    print t2
    print 'passed:', t2-t1
    print n
    return t2-t1,n

def loop_test2(keyfn):
    N=10
    sum=0
    for i in range(N):
        tx,n = test2(keyfn)
        sum+=n
        time.sleep(1)
    print 'average:', sum /N

if __name__=='__main__':
    keyfn ='keys/svpbk.pem'
    #test1(keyfn)
    loop_test2(keyfn)