1 files changed, 91 insertions, 0 deletions
diff --git a/core/lib/libtomcrypt/src/pk/asn1/der/sequence/der_encode_subject_public_key_info.c b/core/lib/libtomcrypt/src/pk/asn1/der/sequence/der_encode_subject_public_key_info.c
new file mode 100644
index 0000000..a075e7c
--- /dev/null
+++ b/core/lib/libtomcrypt/src/pk/asn1/der/sequence/der_encode_subject_public_key_info.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2001-2007, Tom St Denis
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* 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.
+ *
+ */
+#include "tomcrypt.h"
+
+/**
+  @file der_encode_sequence_multi.c
+  ASN.1 DER, encode a Subject Public Key structure --nmav
+*/
+
+#ifdef LTC_DER
+
+/* AlgorithmIdentifier := SEQUENCE {
+ *    algorithm OBJECT IDENTIFIER,
+ *    parameters ANY DEFINED BY algorithm
+ * }
+ *
+ * SubjectPublicKeyInfo := SEQUENCE {
+ *    algorithm AlgorithmIdentifier,
+ *    subjectPublicKey BIT STRING
+ * }
+ */
+/**
+  Encode a SEQUENCE type using a VA list
+  @param out    [out] Destination for data
+  @param outlen [in/out] Length of buffer and resulting length of output
+  @remark <...> is of the form <type, size, data> (int, unsigned long, void*)
+  @return CRYPT_OK on success
+*/
+int der_encode_subject_public_key_info(unsigned char *out, unsigned long *outlen,
+        unsigned int algorithm, void* public_key, unsigned long public_key_len,
+        unsigned long parameters_type, void* parameters, unsigned long parameters_len)
+{
+   int           err;
+   ltc_asn1_list alg_id[2];
+   oid_st oid;
+
+   LTC_ARGCHK(out    != NULL);
+   LTC_ARGCHK(outlen != NULL);
+
+   err = pk_get_oid(algorithm, &oid);
+   if (err != CRYPT_OK) {
+        return err;
+   }
+
+   LTC_SET_ASN1(alg_id, 0, LTC_ASN1_OBJECT_IDENTIFIER, oid.OID,    oid.OIDlen);
+   LTC_SET_ASN1(alg_id, 1, parameters_type,            parameters, parameters_len);
+
+   return der_encode_sequence_multi(out, outlen,
+        LTC_ASN1_SEQUENCE, (unsigned long)sizeof(alg_id)/sizeof(alg_id[0]), alg_id,
+        LTC_ASN1_RAW_BIT_STRING, (unsigned long)(public_key_len*8), public_key,
+        LTC_ASN1_EOL,     0UL, NULL);
+
+}
+
+#endif
+
+