utils: Add (partial) libtomcrypt.

Add the parts of libtomcrypt that we're about to use.

Change-Id: I0adc1d7d1f4833e7bb3ed53b9a4d9a85977cfb8b

1 files changed, 108 insertions, 0 deletions

diff --git a/utils/tomcrypt/src/headers/tomcrypt_pkcs.h b/utils/tomcrypt/src/headers/tomcrypt_pkcs.h
new file mode 100644
index 0000000000..b84028f122
--- /dev/null
+++ b/utils/tomcrypt/src/headers/tomcrypt_pkcs.h
@@ -0,0 +1,108 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ */
+
+/* PKCS Header Info */
+
+/* ===> PKCS #1 -- RSA Cryptography <=== */
+#ifdef LTC_PKCS_1
+
+enum ltc_pkcs_1_v1_5_blocks
+{
+  LTC_PKCS_1_EMSA   = 1,        /* Block type 1 (PKCS #1 v1.5 signature padding) */
+  LTC_PKCS_1_EME    = 2         /* Block type 2 (PKCS #1 v1.5 encryption padding) */
+};
+
+enum ltc_pkcs_1_paddings
+{
+  LTC_PKCS_1_V1_5     = 1,        /* PKCS #1 v1.5 padding (\sa ltc_pkcs_1_v1_5_blocks) */
+  LTC_PKCS_1_OAEP     = 2,        /* PKCS #1 v2.0 encryption padding */
+  LTC_PKCS_1_PSS      = 3,        /* PKCS #1 v2.1 signature padding */
+  LTC_PKCS_1_V1_5_NA1 = 4         /* PKCS #1 v1.5 padding - No ASN.1 (\sa ltc_pkcs_1_v1_5_blocks) */
+};
+
+int pkcs_1_mgf1(      int            hash_idx,
+                const unsigned char *seed, unsigned long seedlen,
+                      unsigned char *mask, unsigned long masklen);
+
+int pkcs_1_i2osp(void *n, unsigned long modulus_len, unsigned char *out);
+int pkcs_1_os2ip(void *n, unsigned char *in, unsigned long inlen);
+
+/* *** v1.5 padding */
+int pkcs_1_v1_5_encode(const unsigned char *msg,
+                             unsigned long  msglen,
+                             int            block_type,
+                             unsigned long  modulus_bitlen,
+                                prng_state *prng,
+                                       int  prng_idx,
+                             unsigned char *out,
+                             unsigned long *outlen);
+
+int pkcs_1_v1_5_decode(const unsigned char *msg,
+                             unsigned long  msglen,
+                                       int  block_type,
+                             unsigned long  modulus_bitlen,
+                             unsigned char *out,
+                             unsigned long *outlen,
+                                       int *is_valid);
+
+/* *** v2.1 padding */
+int pkcs_1_oaep_encode(const unsigned char *msg,    unsigned long msglen,
+                       const unsigned char *lparam, unsigned long lparamlen,
+                             unsigned long modulus_bitlen, prng_state *prng,
+                             int           prng_idx,         int  hash_idx,
+                             unsigned char *out,    unsigned long *outlen);
+
+int pkcs_1_oaep_decode(const unsigned char *msg,    unsigned long msglen,
+                       const unsigned char *lparam, unsigned long lparamlen,
+                             unsigned long modulus_bitlen, int hash_idx,
+                             unsigned char *out,    unsigned long *outlen,
+                             int           *res);
+
+int pkcs_1_pss_encode(const unsigned char *msghash, unsigned long msghashlen,
+                            unsigned long saltlen,  prng_state   *prng,
+                            int           prng_idx, int           hash_idx,
+                            unsigned long modulus_bitlen,
+                            unsigned char *out,     unsigned long *outlen);
+
+int pkcs_1_pss_decode(const unsigned char *msghash, unsigned long msghashlen,
+                      const unsigned char *sig,     unsigned long siglen,
+                            unsigned long saltlen,  int           hash_idx,
+                            unsigned long modulus_bitlen, int    *res);
+
+#endif /* LTC_PKCS_1 */
+
+/* ===> PKCS #5 -- Password Based Cryptography <=== */
+#ifdef LTC_PKCS_5
+
+/* Algorithm #1 (PBKDF1) */
+int pkcs_5_alg1(const unsigned char *password, unsigned long password_len,
+                const unsigned char *salt,
+                int iteration_count,  int hash_idx,
+                unsigned char *out,   unsigned long *outlen);
+
+/* Algorithm #1 (PBKDF1) - OpenSSL-compatible variant for arbitrarily-long keys.
+   Compatible with EVP_BytesToKey() */
+int pkcs_5_alg1_openssl(const unsigned char *password,
+                        unsigned long password_len,
+                        const unsigned char *salt,
+                        int iteration_count,  int hash_idx,
+                        unsigned char *out,   unsigned long *outlen);
+
+/* Algorithm #2 (PBKDF2) */
+int pkcs_5_alg2(const unsigned char *password, unsigned long password_len,
+                const unsigned char *salt,     unsigned long salt_len,
+                int iteration_count,           int hash_idx,
+                unsigned char *out,            unsigned long *outlen);
+
+int pkcs_5_test (void);
+#endif  /* LTC_PKCS_5 */
+
+/* ref:         HEAD -> master, tag: v1.18.2 */
+/* git commit:  7e7eb695d581782f04b24dc444cbfde86af59853 */
+/* commit time: 2018-07-01 22:49:01 +0200 */