Javascript 库 (pidCrypt) 使用 PKCS#1 v1.5 进行 RSA 加密,而不是 OAEP。
PyCrypto 支持这一点(请参见此处)。这是加密的示例:
from Crypto.Cipher import PKCS1_v1_5
from Crypto.PublicKey import RSA
from Crypto.Hash import SHA
message = 'To be encrypted'
h = SHA.new(message)
key = RSA.importKey(open('pubkey.der').read())
cipher = PKCS1_v1_5.new(key)
ciphertext = cipher.encrypt(message+h.digest())
和解密:
from Crypto.Hash import SHA
from Crypto import Random
key = RSA.importKey(open('privkey.der').read())
dsize = SHA.digest_size
sentinel = Random.new().read(15+dsize) # Let's assume that average data length is 15
cipher = PKCS1_v1_5.new(key)
message = cipher.decrypt(ciphertext, sentinel)
digest = SHA.new(message[:-dsize]).digest()
if digest==message[-dsize:]: # Note how we DO NOT look for the sentinel
print "Encryption was correct."
else:
print "Encryption was not correct."
请注意,已知 PKCS#1 v1.5 加密方案被严重破坏。