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Copyright (c) 1999-2004 Ng Pheng Siong. All rights reserved.

Portions Copyright (c) 2004-2007 Open Source Applications Foundation.
Author: Heikki Toivonen
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    Derive a key from password using PBKDF2 algorithm specified in RFC 2898.
    
    @param password: Derive the key from this password.
    @type password:  str
    @param salt:     Salt.
    @type salt:      str
    @param iter:     Number of iterations to perform.
    @type iter:      int 
    @param keylen:   Length of key to produce.
    @type keylen:    int
    @return:         Key.
    @rtype:          str
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        Add data to be digested.
        
        @return: -1 for Python error, 1 for success, 0 for OpenSSL failure.
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�|_|r�tt|d�}|dkrrtd|f�ntj|j|�||||�}ntj�|_tj|j|j|||�|j	|	�~dS(Nsunknown ciphersunknown message digest(
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RRRtcipher_ctx_freeR>RRRRR5(((s2/usr/lib64/python2.7/site-packages/M2Crypto/EVP.pyR.es				tPKeycBseZdZejZejZdddd�Z	d�Z
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    Public Key
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        Reset internal message digest context.

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        Initialise signing operation with self.
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        Feed data to signing operation.

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        @param data: Data to be signed.
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        Return signature.

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        @return: The signature.
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        Feed data to verification operation.

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        @param data: Data to be verified.
        @return: -1 on Python error, 1 for success, 0 for OpenSSL error
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        Return result of verification.

        @param sign: Signature to use for verification
        @rtype: int
        @return: Result of verification: 1 for success, 0 for failure, -1 on
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        Assign the RSA key pair to self.

        @type rsa: M2Crypto.RSA.RSA
        @param rsa: M2Crypto.RSA.RSA object to be assigned to self.

        @type capture:  boolean
        @param capture: If true (default), this PKey object will own the RSA
                        object, meaning that once the PKey object gets
                        deleted it is no longer safe to use the RSA object.
        
        @rtype: int
        @return: Return 1 for success and 0 for failure.
        i(Rtpkey_assign_rsaRDtrsaREt
pkey_set1_rsa(RRTtcapturetret((s2/usr/lib64/python2.7/site-packages/M2Crypto/EVP.pyt
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        Return the underlying RSA key if that is what the EVP
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        Save the key pair to a file in PEM format.

        @type file: string
        @param file: Name of file to save key to.

        @type cipher: string
        @param cipher: 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.

        @type callback: Python callable
        @param callback: A Python callable object that is invoked
        to acquire a passphrase with which to protect the key. 
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        twb(Rtopenfiletsave_key_bio(RtfileR1tcallbacktbio((s2/usr/lib64/python2.7/site-packages/M2Crypto/EVP.pytsave_key
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        Save the key pair to the M2Crypto.BIO object 'bio' in PEM format.

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        @param bio: M2Crypto.BIO object to save key to.

        @type cipher: string
        @param cipher: 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.

        @type callback: Python callable
        @param callback: A Python callable object that is invoked
        to acquire a passphrase with which to protect the key. 
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        sno such cipher %sN(RRtpkey_write_pem_no_cipherRDRIRRtpkey_write_pem(RRcR1Rbtproto((s2/usr/lib64/python2.7/site-packages/M2Crypto/EVP.pyR`scCs)tj�}|j|||�|j�S(s�
        Return key in PEM format in a string.

        @type cipher: string
        @param cipher: Symmetric cipher to protect the key. The default
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        in the clear.

        @type callback: Python callable
        @param callback: A Python callable object that is invoked
        to acquire a passphrase with which to protect the key. 
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        (RtMemoryBufferR`tread_all(RR1RbRc((s2/usr/lib64/python2.7/site-packages/M2Crypto/EVP.pytas_pem7scCs+tj|j�}tj|�}|j�S(s6
        Return key in DER format in a string
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        Return the size of the key in bytes.
        (Rt	pkey_sizeRD(R((s2/usr/lib64/python2.7/site-packages/M2Crypto/EVP.pytsizeQscCstj|j�S(s3
        Return the modulus in hex format.
        (Rtpkey_get_modulusRD(R((s2/usr/lib64/python2.7/site-packages/M2Crypto/EVP.pytget_modulusWsN( RRR Rt	pkey_freeRHR!RRRRRIRGRKRLRMRNRRRORPRQRXR\Rtpassphrase_callbackRdR`RjRmRoRq(((s2/usr/lib64/python2.7/site-packages/M2Crypto/EVP.pyRC�s0											
		
				cCs�tj|d�}|dkr6tjtj���ntj||�}tj|�|dkrvt	tj���nt
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    Load an M2Crypto.EVP.PKey from file.

    @type file: string
    @param file: Name of file containing the key in PEM format.

    @type callback: Python callable
    @param callback: A Python callable object that is invoked
    to acquire a passphrase with which to protect the key.

    @rtype: M2Crypto.EVP.PKey
    @return: M2Crypto.EVP.PKey object.
    triN(Rtbio_new_fileRRtBIOErrorRt	get_errort
pkey_read_pemtbio_freeRRC(RaRbRctcptr((s2/usr/lib64/python2.7/site-packages/M2Crypto/EVP.pytload_key^s
cCsFtj|j�|�}|dkr9ttj���nt|d�S(s�
    Load an M2Crypto.EVP.PKey from an M2Crypto.BIO object.

    @type bio: M2Crypto.BIO
    @param bio: M2Crypto.BIO object containing the key in PEM format.

    @type callback: Python callable
    @param callback: A Python callable object that is invoked
    to acquire a passphrase with which to protect the key.

    @rtype: M2Crypto.EVP.PKey
    @return: M2Crypto.EVP.PKey object.
    iN(RRxRIRRRRwRC(RcRbRz((s2/usr/lib64/python2.7/site-packages/M2Crypto/EVP.pytload_key_biouscCstj|�}t||�S(sl
    Load an M2Crypto.EVP.PKey from a string.

    @type string: string
    @param string: String containing the key in PEM format.

    @type callback: Python callable
    @param callback: A Python callable object that is invoked
    to acquire a passphrase with which to protect the key.

    @rtype: M2Crypto.EVP.PKey
    @return: M2Crypto.EVP.PKey object.
    (RRhR|(tstringRbRc((s2/usr/lib64/python2.7/site-packages/M2Crypto/EVP.pytload_key_string�s(((((R tM2CryptoRRRRRt	ExceptionRtevp_initR
RR#R-R.RCRsR{R|R~(((s2/usr/lib64/python2.7/site-packages/M2Crypto/EVP.pyt<module>s"
	!!�