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authorAKASHI Takahiro <takahiro.akashi@linaro.org>2019-11-13 09:44:59 +0900
committerTom Rini <trini@konsulko.com>2019-12-06 16:44:20 -0500
commit9b933bf6f4fa4db2f8ab94d3b977b7fefa2644dd (patch)
treedd8f930e0c77879b93f183e38498d9d2a6d9a7d4 /include/crypto/internal
parentc4e961ecec994059dbdd5f34b58454d5243ad8f0 (diff)
lib: crypto: add rsa public key parser
Imported from linux kernel v5.3: rsapubkey.asn1 without changes rsa.h without changes rsa_helper.c with changes marked as __UBOOT__ Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Diffstat (limited to 'include/crypto/internal')
-rw-r--r--include/crypto/internal/rsa.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/include/crypto/internal/rsa.h b/include/crypto/internal/rsa.h
new file mode 100644
index 0000000000..e870133f4b
--- /dev/null
+++ b/include/crypto/internal/rsa.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * RSA internal helpers
+ *
+ * Copyright (c) 2015, Intel Corporation
+ * Authors: Tadeusz Struk <tadeusz.struk@intel.com>
+ */
+#ifndef _RSA_HELPER_
+#define _RSA_HELPER_
+#include <linux/types.h>
+
+/**
+ * rsa_key - RSA key structure
+ * @n : RSA modulus raw byte stream
+ * @e : RSA public exponent raw byte stream
+ * @d : RSA private exponent raw byte stream
+ * @p : RSA prime factor p of n raw byte stream
+ * @q : RSA prime factor q of n raw byte stream
+ * @dp : RSA exponent d mod (p - 1) raw byte stream
+ * @dq : RSA exponent d mod (q - 1) raw byte stream
+ * @qinv : RSA CRT coefficient q^(-1) mod p raw byte stream
+ * @n_sz : length in bytes of RSA modulus n
+ * @e_sz : length in bytes of RSA public exponent
+ * @d_sz : length in bytes of RSA private exponent
+ * @p_sz : length in bytes of p field
+ * @q_sz : length in bytes of q field
+ * @dp_sz : length in bytes of dp field
+ * @dq_sz : length in bytes of dq field
+ * @qinv_sz : length in bytes of qinv field
+ */
+struct rsa_key {
+ const u8 *n;
+ const u8 *e;
+ const u8 *d;
+ const u8 *p;
+ const u8 *q;
+ const u8 *dp;
+ const u8 *dq;
+ const u8 *qinv;
+ size_t n_sz;
+ size_t e_sz;
+ size_t d_sz;
+ size_t p_sz;
+ size_t q_sz;
+ size_t dp_sz;
+ size_t dq_sz;
+ size_t qinv_sz;
+};
+
+int rsa_parse_pub_key(struct rsa_key *rsa_key, const void *key,
+ unsigned int key_len);
+
+int rsa_parse_priv_key(struct rsa_key *rsa_key, const void *key,
+ unsigned int key_len);
+
+extern struct crypto_template rsa_pkcs1pad_tmpl;
+#endif