1 files changed, 0 insertions, 458 deletions
diff --git a/Source/lib/crypto/rsa/rsa_public_key.c b/Source/lib/crypto/rsa/rsa_public_key.c
deleted file mode 100644
index 6601b6cda..000000000
--- a/Source/lib/crypto/rsa/rsa_public_key.c
+++ /dev/null
@@ -1,458 +0,0 @@
-/**
- * @file rsa_public_key.c
- * 
- * @brief Implementation of rsa_public_key_t.
- * 
- */
-
-/*
- * Copyright (C) 2005 Jan Hutter, Martin Willi
- * Hochschule fuer Technik Rapperswil
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- */
- 
-#include <gmp.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <string.h>
-
-#include "rsa_public_key.h"
-
-#include <daemon.h>
-#include <crypto/hashers/hasher.h>
-#include <asn1/asn1.h>
-
-/* 
- * For simplicity,
- * we use these predefined values for
- * hash algorithm OIDs. These also contain
- * the length of the following hash.
- * These values are also used in rsa_private_key.c.
- * TODO: We may move them in asn1 sometime...
- */
-
-u_int8_t md2_oid[] = {
-	0x30,0x20,0x30,0x0c,0x06,0x08,0x2a,0x86,
-	0x48,0x86,0xf7,0x0d,0x02,0x02,0x05,0x00,
-	0x04,0x10
-};
-
-u_int8_t md5_oid[] = {
-	0x30,0x20,0x30,0x0c,0x06,0x08,0x2a,0x86,
-	0x48,0x86,0xf7,0x0d,0x02,0x05,0x05,0x00,
-	0x04,0x10
-};
-
-u_int8_t sha1_oid[] = {
-	0x30,0x21,0x30,0x09,0x06,0x05,0x2b,0x0e,
-	0x03,0x02,0x1a,0x05,0x00,0x04,0x14
-};
-
-u_int8_t sha256_oid[] = {
-	0x30,0x31,0x30,0x0d,0x06,0x09,0x60,0x86,
-	0x48,0x01,0x65,0x03,0x04,0x02,0x01,0x05,
-	0x00,0x04,0x20
-};
-
-u_int8_t sha384_oid[] = {
-	0x30,0x41,0x30,0x0d,0x06,0x09,0x60,0x86,
-	0x48,0x01,0x65,0x03,0x04,0x02,0x02,0x05,
-	0x00,0x04,0x30
-};
-
-u_int8_t sha512_oid[] = {
-	0x30,0x51,0x30,0x0d,0x06,0x09,0x60,0x86,
-	0x48,0x01,0x65,0x03,0x04,0x02,0x03,0x05,
-	0x00,0x04,0x40
-};
-
-/* ASN.1 definition public key */
-static const asn1Object_t pubkey_objects[] = {
-	{ 0, "RSAPublicKey",		ASN1_SEQUENCE,     ASN1_OBJ  }, /*  0 */
-	{ 1,   "modulus",			ASN1_INTEGER,      ASN1_BODY }, /*  1 */
-	{ 1,   "publicExponent",	ASN1_INTEGER,      ASN1_BODY }, /*  2 */
-};
-
-#define PUB_KEY_RSA_PUBLIC_KEY		0
-#define PUB_KEY_MODULUS				1
-#define PUB_KEY_EXPONENT			2
-#define PUB_KEY_ROOF				3
-
-typedef struct private_rsa_public_key_t private_rsa_public_key_t;
-
-/**
- * Private data structure with signing context.
- */
-struct private_rsa_public_key_t {
-	/**
-	 * Public interface for this signer.
-	 */
-	rsa_public_key_t public;
-	
-	/**
-	 * Public modulus.
-	 */
-	mpz_t n;
-	
-	/**
-	 * Public exponent.
-	 */
-	mpz_t e;
-	
-	/**
-	 * Keysize in bytes.
-	 */
-	size_t k;
-	
-	/**
-	 * @brief Implements the RSAEP algorithm specified in PKCS#1.
-	 * 
-	 * @param this		calling object
-	 * @param data		data to process
-	 * @return			processed data
-	 */
-	chunk_t (*rsaep) (private_rsa_public_key_t *this, chunk_t data);
-		
-	/**
-	 * @brief Implements the RSASVP1 algorithm specified in PKCS#1.
-	 * 
-	 * @param this		calling object
-	 * @param data		data to process
-	 * @return			processed data
-	 */
-	chunk_t (*rsavp1) (private_rsa_public_key_t *this, chunk_t data);
-};
-
-
-typedef struct rsa_public_key_info_t rsa_public_key_info_t;
-
-/**
- * KeyInfo, as it appears in a public key file
- */
-struct rsa_public_key_info_t {
-	/**
-	 * Algorithm for this key
-	 */
-	chunk_t algorithm_oid;
-	
-	/**
-	 * Public key, parseable with rsa_public_key_rules
-	 */
-	chunk_t public_key;
-};
-
-private_rsa_public_key_t *rsa_public_key_create_empty();
-
-/**
- * Implementation of private_rsa_public_key_t.rsaep and private_rsa_public_key_t.rsavp1
- */
-static chunk_t rsaep(private_rsa_public_key_t *this, chunk_t data)
-{
-	mpz_t m, c;
-	chunk_t encrypted;
-	
-	mpz_init(c);
-	mpz_init(m);
-	
-	mpz_import(m, data.len, 1, 1, 1, 0, data.ptr);
-	
-	mpz_powm(c, m, this->e, this->n);
-
-    encrypted.len = this->k;
-    encrypted.ptr = mpz_export(NULL, NULL, 1, encrypted.len, 1, 0, c);
-	
-	mpz_clear(c);
-	mpz_clear(m);	
-	
-	return encrypted;
-}
-
-/**
- * Implementation of rsa_public_key.verify_emsa_pkcs1_signature.
- */
-static status_t verify_emsa_pkcs1_signature(private_rsa_public_key_t *this, chunk_t data, chunk_t signature)
-{
-	hasher_t *hasher = NULL;
-	chunk_t hash;
-	chunk_t em;
-	u_int8_t *pos;
-	
-	if (signature.len > this->k)
-	{
-		return INVALID_ARG;	
-	}
-	
-	/* unpack signature */
-	em = this->rsavp1(this, signature);
-	
-	/* result should look like this:
-	 * EM = 0x00 || 0x01 || PS || 0x00 || T. 
-	 * PS = 0xFF padding, with length to fill em
-	 * T = oid || hash
-	 */	
-	
-	/* check magic bytes */
-	if ((*(em.ptr) != 0x00) ||
-		(*(em.ptr+1) != 0x01))
-	{
-		free(em.ptr);
-		return FAILED;
-	}
-	
-	/* find magic 0x00 */
-	pos = em.ptr + 2;
-	while (pos <= em.ptr + em.len)
-	{
-		if (*pos == 0x00)
-		{
-			/* found magic byte, stop */
-			pos++;
-			break;
-		}
-		else if (*pos != 0xFF)
-		{
-			/* bad padding, decryption failed ?!*/
-			free(em.ptr);
-			return FAILED;	
-		}
-		pos++;
-	}
-
-	if (pos + 20 > em.ptr + em.len)
-	{
-		/* not enought room for oid compare */
-		free(em.ptr);
-		return FAILED;	
-	}
-	
-	if (memcmp(md2_oid, pos, sizeof(md2_oid)) == 0)
-	{
-		hasher = hasher_create(HASH_MD2);
-		pos += sizeof(md2_oid);
-	}
-	else if (memcmp(md5_oid, pos, sizeof(md5_oid)) == 0)
-	{
-		hasher = hasher_create(HASH_MD5);
-		pos += sizeof(md5_oid);
-	}
-	else if (memcmp(sha1_oid, pos, sizeof(sha1_oid)) == 0)
-	{
-		hasher = hasher_create(HASH_SHA1);
-		pos += sizeof(sha1_oid);
-	}
-	else if (memcmp(sha256_oid, pos, sizeof(sha256_oid)) == 0)
-	{
-		hasher = hasher_create(HASH_SHA256);
-		pos += sizeof(sha256_oid);
-	}
-	else if (memcmp(sha384_oid, pos, sizeof(sha384_oid)) == 0)
-	{
-		hasher = hasher_create(HASH_SHA384);
-		pos += sizeof(sha384_oid);
-	}
-	else if (memcmp(sha512_oid, pos, sizeof(sha512_oid)) == 0)
-	{
-		hasher = hasher_create(HASH_SHA512);
-		pos += sizeof(sha512_oid);
-	}
-	
-	if (hasher == NULL)
-	{
-		/* not supported hash algorithm */
-		free(em.ptr);
-		return NOT_SUPPORTED;	
-	}
-	
-	if (pos + hasher->get_hash_size(hasher) != em.ptr + em.len)
-	{
-		/* bad length */
-		free(em.ptr);
-		hasher->destroy(hasher);
-		return FAILED;	
-	}
-	
-	/* build own hash for a compare */
-	hasher->allocate_hash(hasher, data, &hash);
-	hasher->destroy(hasher);
-	
-	if (memcmp(hash.ptr, pos, hash.len) != 0)
-	{
-		/* hash does not equal */
-		free(hash.ptr);
-		free(em.ptr);
-		return FAILED;	
-			
-	}
-	
-	/* seems good */
-	free(hash.ptr);
-	free(em.ptr);
-	return SUCCESS;	
-}
-	
-/**
- * Implementation of rsa_public_key.get_key.
- */
-static status_t get_key(private_rsa_public_key_t *this, chunk_t *key)
-{	
-	chunk_t n, e;
-
-	n.len = this->k;
-	n.ptr = mpz_export(NULL, NULL, 1, n.len, 1, 0, this->n);
-	e.len = this->k;
-	e.ptr = mpz_export(NULL, NULL, 1, e.len, 1, 0, this->e);
-	
-	key->len = this->k * 2;
-	key->ptr = malloc(key->len);
-	memcpy(key->ptr, n.ptr, n.len);
-	memcpy(key->ptr + n.len, e.ptr, e.len);
-	free(n.ptr);
-	free(e.ptr);
-	
-	return SUCCESS;
-}
-
-/**
- * Implementation of rsa_public_key.save_key.
- */
-static status_t save_key(private_rsa_public_key_t *this, char *file)
-{
-	return NOT_SUPPORTED;
-}
-
-/**
- * Implementation of rsa_public_key.get_modulus.
- */
-static mpz_t *get_modulus(private_rsa_public_key_t *this)
-{
-	return &this->n;
-}
-
-/**
- * Implementation of rsa_public_key.clone.
- */
-static rsa_public_key_t* _clone(private_rsa_public_key_t *this)
-{
-	private_rsa_public_key_t *clone = rsa_public_key_create_empty();
-	
-	mpz_init_set(clone->n, this->n);
-	mpz_init_set(clone->e, this->e);
-	clone->k = this->k;
-	
-	return &clone->public;
-}
-
-/**
- * Implementation of rsa_public_key.destroy.
- */
-static void destroy(private_rsa_public_key_t *this)
-{
-	mpz_clear(this->n);
-	mpz_clear(this->e);
-	free(this);
-}
-
-/**
- * Generic private constructor
- */
-private_rsa_public_key_t *rsa_public_key_create_empty()
-{
-	private_rsa_public_key_t *this = malloc_thing(private_rsa_public_key_t);
-	
-	/* public functions */
-	this->public.verify_emsa_pkcs1_signature = (status_t (*) (rsa_public_key_t*,chunk_t,chunk_t))verify_emsa_pkcs1_signature;
-	this->public.get_key = (status_t (*) (rsa_public_key_t*,chunk_t*))get_key;
-	this->public.save_key = (status_t (*) (rsa_public_key_t*,char*))save_key;
-	this->public.get_modulus = (mpz_t *(*) (rsa_public_key_t*))get_modulus;
-	this->public.clone = (rsa_public_key_t* (*) (rsa_public_key_t*))_clone;
-	this->public.destroy = (void (*) (rsa_public_key_t*))destroy;
-	
-	/* private functions */
-	this->rsaep = rsaep;
-	this->rsavp1 = rsaep; /* same algorithm */
-	
-	return this;
-}
-	
-/*
- * See header
- */
-rsa_public_key_t *rsa_public_key_create_from_chunk(chunk_t blob)
-{
-	asn1_ctx_t ctx;
-	chunk_t object;
-	u_int level;
-	int objectID = 0;
-	private_rsa_public_key_t *this;
-	
-	this = rsa_public_key_create_empty();
-	mpz_init(this->n);
-	mpz_init(this->e);
-	
-	asn1_init(&ctx, blob, 0, FALSE);
-	
-	while (objectID < PUB_KEY_ROOF) 
-	{
-		if (!extract_object(pubkey_objects, &objectID, &object, &level, &ctx))
-		{
-			destroy(this);
-			return FALSE;
-		}
-		switch (objectID)
-		{
-			case PUB_KEY_MODULUS:
-				mpz_import(this->n, object.len, 1, 1, 1, 0, object.ptr);
-				break;
-			case PUB_KEY_EXPONENT:
-				mpz_import(this->e, object.len, 1, 1, 1, 0, object.ptr);
-				break;
-		}
-		objectID++;
-	}
-	
-	this->k = (mpz_sizeinbase(this->n, 2) + 7) / 8;
-	return &this->public;
-}
-
-/*
- * See header
- */
-rsa_public_key_t *rsa_public_key_create_from_file(char *filename)
-{
-	struct stat stb;
-	FILE *file;
-	char *buffer;
-	chunk_t chunk;
-	
-	if (stat(filename, &stb) == -1)
-	{
-		return NULL;
-	}
-	
-	buffer = alloca(stb.st_size);
-	
-	file = fopen(filename, "r");
-	if (file == NULL)
-	{
-		return NULL;
-	}
-	
-	if (fread(buffer, stb.st_size, 1, file) != 1)
-	{
-		return NULL;
-	}
-	
-	chunk.ptr = buffer;
-	chunk.len = stb.st_size;
-	
-	return rsa_public_key_create_from_chunk(chunk);
-}