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annotate nss/lib/util/secdig.h @ 0:1e5118fa0cb1

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This is NSS with a Cmake Buildsyste To compile a static NSS library for Windows we've used the Chromium-NSS fork and added a Cmake buildsystem to compile it statically for Windows. See README.chromium for chromium changes and README.trustbridge for our modifications.
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 28 Jul 2014 10:47:06 +0200
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1 /*
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2 * secdig.h - public prototypes for digest-info functions
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3 *
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4 * This Source Code Form is subject to the terms of the Mozilla Public
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5 * License, v. 2.0. If a copy of the MPL was not distributed with this
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6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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7
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8 #ifndef _SECDIG_H_
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9 #define _SECDIG_H_
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10
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11 #include "utilrename.h"
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12 #include "secdigt.h"
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13
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14 #include "seccomon.h"
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15 #include "secasn1t.h"
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16 #include "secdert.h"
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17
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18 SEC_BEGIN_PROTOS
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19
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20
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21 extern const SEC_ASN1Template sgn_DigestInfoTemplate[];
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22
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23 SEC_ASN1_CHOOSER_DECLARE(sgn_DigestInfoTemplate)
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24
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25 /****************************************/
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26 /*
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27 ** Digest-info functions
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28 */
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29
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30 /*
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31 ** Create a new digest-info object
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32 ** "algorithm" one of SEC_OID_MD2, SEC_OID_MD5, or SEC_OID_SHA1
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33 ** "sig" the raw signature data (from MD2 or MD5)
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34 ** "sigLen" the length of the signature data
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35 **
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36 ** NOTE: this is a low level routine used to prepare some data for PKCS#1
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37 ** digital signature formatting.
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38 **
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39 ** XXX It might be nice to combine the create and encode functions.
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40 ** I think that is all anybody ever wants to do anyway.
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41 */
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42 extern SGNDigestInfo *SGN_CreateDigestInfo(SECOidTag algorithm,
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43 const unsigned char *sig,
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44 unsigned int sigLen);
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45
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46 /*
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47 ** Destroy a digest-info object
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48 */
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49 extern void SGN_DestroyDigestInfo(SGNDigestInfo *info);
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50
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51 /*
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52 ** Encode a digest-info object
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53 ** "poolp" is where to allocate the result from; it can be NULL in
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54 ** which case generic heap allocation (XP_ALLOC) will be used
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55 ** "dest" is where to store the result; it can be NULL, in which case
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56 ** it will be allocated (from poolp or heap, as explained above)
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57 ** "diginfo" is the object to be encoded
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58 ** The return value is NULL if any error occurred, otherwise it is the
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59 ** resulting SECItem (either allocated or the same as the "dest" parameter).
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60 **
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61 ** XXX It might be nice to combine the create and encode functions.
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62 ** I think that is all anybody ever wants to do anyway.
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63 */
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64 extern SECItem *SGN_EncodeDigestInfo(PLArenaPool *poolp, SECItem *dest,
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65 SGNDigestInfo *diginfo);
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66
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67 /*
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68 ** Decode a DER encoded digest info objct.
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69 ** didata is thr source of the encoded digest.
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70 ** The return value is NULL if an error occurs. Otherwise, a
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71 ** digest info object which is allocated within it's own
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72 ** pool is returned. The digest info should be deleted
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73 ** by later calling SGN_DestroyDigestInfo.
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74 */
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75 extern SGNDigestInfo *SGN_DecodeDigestInfo(SECItem *didata);
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76
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77
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78 /*
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79 ** Copy digest info.
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80 ** poolp is the arena to which the digest will be copied.
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81 ** a is the destination digest, it must be non-NULL.
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82 ** b is the source digest
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83 ** This function is for copying digests. It allows digests
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84 ** to be copied into a specified pool. If the digest is in
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85 ** the same pool as other data, you do not want to delete
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86 ** the digest by calling SGN_DestroyDigestInfo.
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87 ** A return value of SECFailure indicates an error. A return
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88 ** of SECSuccess indicates no error occurred.
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89 */
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90 extern SECStatus SGN_CopyDigestInfo(PLArenaPool *poolp,
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91 SGNDigestInfo *a,
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92 SGNDigestInfo *b);
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93
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94 /*
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95 ** Compare two digest-info objects, returning the difference between
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96 ** them.
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97 */
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98 extern SECComparison SGN_CompareDigestInfo(SGNDigestInfo *a, SGNDigestInfo *b);
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99
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100
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101 SEC_END_PROTOS
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102
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103 #endif /* _SECDIG_H_ */
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