#include <prf_tls.h>

Inheritance diagram for Botan::TLS_PRF:

Public Member Functions
void	clear ()

KDF *	clone () const

secure_vector< byte >	derive (size_t key_len, const byte secret[], size_t secret_len, const byte seed[], size_t seed_len) const

secure_vector< byte >	derive_key (size_t key_len, const secure_vector< byte > &secret, const std::string &salt="") const

template<typename Alloc , typename Alloc2 >
secure_vector< byte >	derive_key (size_t key_len, const std::vector< byte, Alloc > &secret, const std::vector< byte, Alloc2 > &salt) const

secure_vector< byte >	derive_key (size_t key_len, const secure_vector< byte > &secret, const byte salt[], size_t salt_len) const

secure_vector< byte >	derive_key (size_t key_len, const byte secret[], size_t secret_len, const std::string &salt="") const

secure_vector< byte >	derive_key (size_t key_len, const byte secret[], size_t secret_len, const byte salt[], size_t salt_len) const

std::string	name () const

	TLS_PRF ()

	~TLS_PRF ()

Detailed Description

PRF used in TLS 1.0/1.1

Definition at line 20 of file prf_tls.h.

Constructor & Destructor Documentation

Botan::TLS_PRF::TLS_PRF ( )

Definition at line 62 of file prf_tls.cpp.

    {
    hmac_md5 = new HMAC(new MD5);
    hmac_sha1 = new HMAC(new SHA_160);
    }

Botan::TLS_PRF::~TLS_PRF ( )

Definition at line 68 of file prf_tls.cpp.

    {
    delete hmac_md5;
    delete hmac_sha1;
    }

Member Function Documentation

void Botan::KDF::clear ( )

inlinevirtualinherited

Zeroize internal state

Implements Botan::Algorithm.

Definition at line 86 of file kdf.h.

86 {}

KDF* Botan::TLS_PRF::clone ( ) const

inlinevirtual

Implements Botan::KDF.

Definition at line 28 of file prf_tls.h.

28 { return new TLS_PRF; }

secure_vector< byte > Botan::TLS_PRF::derive	(	size_t	key_len,
		const byte	secret[],
		size_t	secret_len,
		const byte	seed[],
		size_t	seed_len
	)		const

virtual

Implements Botan::KDF.

Definition at line 77 of file prf_tls.cpp.

    {
    secure_vector<byte> output(key_len);
 
    size_t S1_len = (secret_len + 1) / 2,
           S2_len = (secret_len + 1) / 2;
    const byte* S1 = secret;
    const byte* S2 = secret + (secret_len - S2_len);
 
    P_hash(output, hmac_md5,  S1, S1_len, seed, seed_len);
    P_hash(output, hmac_sha1, S2, S2_len, seed, seed_len);
 
    return output;
    }

secure_vector< byte > Botan::KDF::derive_key	(	size_t	key_len,
		const secure_vector< byte > &	secret,
		const std::string &	salt = `""`
	)		const

inherited

Derive a key

Parameters

key_len	the desired output length in bytes
secret	the secret input
salt	a diversifier

Definition at line 15 of file kdf.cpp.

Referenced by Botan::KDF::derive_key(), and Botan::PK_Key_Agreement::derive_key().

    {
    return derive_key(key_len, &secret[0], secret.size(),
                      reinterpret_cast<const byte*>(salt.data()),
                      salt.length());
    }

template<typename Alloc , typename Alloc2 >

secure_vector<byte> Botan::KDF::derive_key	(	size_t	key_len,
		const std::vector< byte, Alloc > &	secret,
		const std::vector< byte, Alloc2 > &	salt
	)		const

inlineinherited

Derive a key

Parameters

key_len	the desired output length in bytes
secret	the secret input
salt	a diversifier

Definition at line 40 of file kdf.h.

References Botan::TLS::derive_key().

          {
          return derive_key(key_len, &secret[0], secret.size(),
                            &salt[0], salt.size());
          }

secure_vector< byte > Botan::KDF::derive_key	(	size_t	key_len,
		const secure_vector< byte > &	secret,
		const byte	salt[],
		size_t	salt_len
	)		const

inherited

Derive a key

Parameters

key_len	the desired output length in bytes
secret	the secret input
salt	a diversifier
salt_len	size of salt in bytes

Definition at line 27 of file kdf.cpp.

References Botan::KDF::derive_key().

    {
    return derive_key(key_len, &secret[0], secret.size(),
                      salt, salt_len);
    }

secure_vector< byte > Botan::KDF::derive_key	(	size_t	key_len,
		const byte	secret[],
		size_t	secret_len,
		const std::string &	salt = `""`
	)		const

inherited

Derive a key

Parameters

key_len	the desired output length in bytes
secret	the secret input
secret_len	size of secret in bytes
salt	a diversifier

Definition at line 38 of file kdf.cpp.

References Botan::KDF::derive_key().

    {
    return derive_key(key_len, secret, secret_len,
                      reinterpret_cast<const byte*>(salt.data()),
                      salt.length());
    }

secure_vector< byte > Botan::KDF::derive_key	(	size_t	key_len,
		const byte	secret[],
		size_t	secret_len,
		const byte	salt[],
		size_t	salt_len
	)		const

inherited

Derive a key

Parameters

key_len	the desired output length in bytes
secret	the secret input
secret_len	size of secret in bytes
salt	a diversifier
salt_len	size of salt in bytes

Definition at line 50 of file kdf.cpp.

    {
    return derive(key_len, secret, secret_len, salt, salt_len);
    }

std::string Botan::TLS_PRF::name ( ) const

inlinevirtual

Returns: name of this algorithm

Implements Botan::Algorithm.

Definition at line 27 of file prf_tls.h.

27 { return "TLS-PRF"; }

The documentation for this class was generated from the following files:

src/kdf/prf_tls/prf_tls.h
src/kdf/prf_tls/prf_tls.cpp

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation