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kernel/linux-imx6_3.14.28/include/linux/digsig.h 1.35 KB
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  /*
   * Copyright (C) 2011 Nokia Corporation
   * Copyright (C) 2011 Intel Corporation
   *
   * Author:
   * Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
   *                 <dmitry.kasatkin@intel.com>
   *
   * 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, version 2 of the License.
   *
   */
  
  #ifndef _DIGSIG_H
  #define _DIGSIG_H
  
  #include <linux/key.h>
  
  enum pubkey_algo {
  	PUBKEY_ALGO_RSA,
  	PUBKEY_ALGO_MAX,
  };
  
  enum digest_algo {
  	DIGEST_ALGO_SHA1,
  	DIGEST_ALGO_SHA256,
  	DIGEST_ALGO_MAX
  };
  
  struct pubkey_hdr {
  	uint8_t		version;	/* key format version */
  	uint32_t	timestamp;	/* key made, always 0 for now */
  	uint8_t		algo;
  	uint8_t		nmpi;
  	char		mpi[0];
  } __packed;
  
  struct signature_hdr {
  	uint8_t		version;	/* signature format version */
  	uint32_t	timestamp;	/* signature made */
  	uint8_t		algo;
  	uint8_t		hash;
  	uint8_t		keyid[8];
  	uint8_t		nmpi;
  	char		mpi[0];
  } __packed;
  
  #if defined(CONFIG_SIGNATURE) || defined(CONFIG_SIGNATURE_MODULE)
  
  int digsig_verify(struct key *keyring, const char *sig, int siglen,
  					const char *digest, int digestlen);
  
  #else
  
  static inline int digsig_verify(struct key *keyring, const char *sig,
  				int siglen, const char *digest, int digestlen)
  {
  	return -EOPNOTSUPP;
  }
  
  #endif /* CONFIG_SIGNATURE */
  
  #endif /* _DIGSIG_H */