Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / include / rsa.h

diff --git a/qemu/roms/u-boot/include/rsa.h b/qemu/roms/u-boot/include/rsa.h
new file mode 100644 (file)
index 0000000..a5680ab
--- /dev/null
+++ b/qemu/roms/u-boot/include/rsa.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2013, Google Inc.
+ *
+ * (C) Copyright 2008 Semihalf
+ *
+ * (C) Copyright 2000-2006
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef _RSA_H
+#define _RSA_H
+
+#include <errno.h>
+#include <image.h>
+
+/**
+ * struct rsa_public_key - holder for a public key
+ *
+ * An RSA public key consists of a modulus (typically called N), the inverse
+ * and R^2, where R is 2^(# key bits).
+ */
+
+struct rsa_public_key {
+       uint len;               /* len of modulus[] in number of uint32_t */
+       uint32_t n0inv;         /* -1 / modulus[0] mod 2^32 */
+       uint32_t *modulus;      /* modulus as little endian array */
+       uint32_t *rr;           /* R^2 as little endian array */
+};
+
+#if IMAGE_ENABLE_SIGN
+/**
+ * sign() - calculate and return signature for given input data
+ *
+ * @info:      Specifies key and FIT information
+ * @data:      Pointer to the input data
+ * @data_len:  Data length
+ * @sigp:      Set to an allocated buffer holding the signature
+ * @sig_len:   Set to length of the calculated hash
+ *
+ * This computes input data signature according to selected algorithm.
+ * Resulting signature value is placed in an allocated buffer, the
+ * pointer is returned as *sigp. The length of the calculated
+ * signature is returned via the sig_len pointer argument. The caller
+ * should free *sigp.
+ *
+ * @return: 0, on success, -ve on error
+ */
+int rsa_sign(struct image_sign_info *info,
+            const struct image_region region[],
+            int region_count, uint8_t **sigp, uint *sig_len);
+
+/**
+ * add_verify_data() - Add verification information to FDT
+ *
+ * Add public key information to the FDT node, suitable for
+ * verification at run-time. The information added depends on the
+ * algorithm being used.
+ *
+ * @info:      Specifies key and FIT information
+ * @keydest:   Destination FDT blob for public key data
+ * @return: 0, on success, -ve on error
+*/
+int rsa_add_verify_data(struct image_sign_info *info, void *keydest);
+#else
+static inline int rsa_sign(struct image_sign_info *info,
+               const struct image_region region[], int region_count,
+               uint8_t **sigp, uint *sig_len)
+{
+       return -ENXIO;
+}
+
+static inline int rsa_add_verify_data(struct image_sign_info *info,
+                                     void *keydest)
+{
+       return -ENXIO;
+}
+#endif
+
+#if IMAGE_ENABLE_VERIFY
+/**
+ * rsa_verify() - Verify a signature against some data
+ *
+ * Verify a RSA PKCS1.5 signature against an expected hash.
+ *
+ * @info:      Specifies key and FIT information
+ * @data:      Pointer to the input data
+ * @data_len:  Data length
+ * @sig:       Signature
+ * @sig_len:   Number of bytes in signature
+ * @return 0 if verified, -ve on error
+ */
+int rsa_verify(struct image_sign_info *info,
+              const struct image_region region[], int region_count,
+              uint8_t *sig, uint sig_len);
+#else
+static inline int rsa_verify(struct image_sign_info *info,
+               const struct image_region region[], int region_count,
+               uint8_t *sig, uint sig_len)
+{
+       return -ENXIO;
+}
+#endif
+
+#define RSA2048_BYTES  (2048 / 8)
+#define RSA4096_BYTES  (4096 / 8)
+
+/* This is the minimum/maximum key size we support, in bits */
+#define RSA_MIN_KEY_BITS       2048
+#define RSA_MAX_KEY_BITS       4096
+
+/* This is the maximum signature length that we support, in bits */
+#define RSA_MAX_SIG_BITS       4096
+
+#endif