Package M2Crypto :: Module EC :: Class EC

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Class EC

Object interface to a EC key pair.

Instance Methods

m2_ec_key_free(...)

__init__(self, ec, _pyfree=0)

__del__(self)

__len__(self)

gen_key(self)
Generates the key pair from its parameters.

pub(self)

sign_dsa(self, digest)
Sign the given digest using ECDSA.

verify_dsa(self, digest, r, s)
Verify the given digest using ECDSA.

sign_dsa_asn1(self, digest)

verify_dsa_asn1(self, digest, blob)

compute_dh_key(self, pub_key)
Compute the ECDH shared key of this key pair and the given public key object.

save_key_bio(self, bio, cipher='aes_128_cbc', callback=<function passphrase_callback at 0x83b2a04>)
Save the key pair to an M2Crypto.BIO.BIO object in PEM format.

save_key(self, file, cipher='aes_128_cbc', callback=<function passphrase_callback at 0x83b2a04>)
Save the key pair to a file in PEM format.

save_pub_key_bio(self, bio)
Save the public key to an M2Crypto.BIO.BIO object in PEM format.

save_pub_key(self, file)
Save the public key to a file in PEM format.

check_key(self)

Method Details

gen_key(self)

Generates the key pair from its parameters. Use:

   keypair = EC.gen_params(curve)
   keypair.gen_key()

to create an EC key pair.

sign_dsa(self, digest)

Sign the given digest using ECDSA. Returns a tuple (r,s), the two ECDSA signature parameters.

verify_dsa(self, digest, r, s)

Verify the given digest using ECDSA. r and s are the ECDSA signature parameters.

compute_dh_key(self, pub_key)

Compute the ECDH shared key of this key pair and the given public key object. They must both use the same curve. Returns the shared key in binary as a buffer object. No Key Derivation Function is applied.

save_key_bio(self, bio, cipher=`'aes_128_cbc'`, callback=<function passphrase_callback at 0x83b2a04>)

Save the key pair to an M2Crypto.BIO.BIO object in PEM format.

Parameters:

bio (M2Crypto.BIO.BIO) - M2Crypto.BIO.BIO object to save key to.
cipher (string) - Symmetric cipher to protect the key. The default cipher is 'aes_128_cbc'. If cipher is None, then the key is saved in the clear.
callback (Python callable) - A Python callable object that is invoked to acquire a passphrase with which to protect the key. The default is util.passphrase_callback.

save_key(self, file, cipher=`'aes_128_cbc'`, callback=<function passphrase_callback at 0x83b2a04>)

Save the key pair to a file in PEM format.

Parameters:

file (string) - Name of file to save key to.
cipher (string) - Symmetric cipher to protect the key. The default cipher is 'aes_128_cbc'. If cipher is None, then the key is saved in the clear.
callback (Python callable) - A Python callable object that is invoked to acquire a passphrase with which to protect the key. The default is util.passphrase_callback.

save_pub_key_bio(self, bio)

Save the public key to an M2Crypto.BIO.BIO object in PEM format.

Parameters:

bio (M2Crypto.BIO.BIO) - M2Crypto.BIO.BIO object to save key to.

save_pub_key(self, file)

Save the public key to a file in PEM format.

Parameters:

file (string) - Name of file to save key to.

Class EC

gen_key(self)

sign_dsa(self, digest)

verify_dsa(self, digest, r, s)

compute_dh_key(self, pub_key)

save_key_bio(self, bio, cipher='aes_128_cbc', callback=<function passphrase_callback at 0x83b2a04>)

save_key(self, file, cipher='aes_128_cbc', callback=<function passphrase_callback at 0x83b2a04>)

save_pub_key_bio(self, bio)

save_pub_key(self, file)

save_key_bio(self, bio, cipher=`'aes_128_cbc'`, callback=<function passphrase_callback at 0x83b2a04>)

save_key(self, file, cipher=`'aes_128_cbc'`, callback=<function passphrase_callback at 0x83b2a04>)