71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
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/* Copyright (c) 2005-2008,2010 Apple Inc. All Rights Reserved. */
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/*
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* DER_Digest.h - DER encode a DigestInfo
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*
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* Created Nov. 9 2005 by dmitch
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*/
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#ifndef _DER_DIGEST_H_
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#define _DER_DIGEST_H_
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#include <libDER/libDER.h>
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__BEGIN_DECLS
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/*
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* Create an encoded DigestInfo based on the specified SHA1 digest.
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* The incoming digest must be 20 bytes long.
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*
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* Result is placed in caller's buffer, which must be at least of
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* length DER_SHA1_DIGEST_INFO_LEN bytes.
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*
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* The *resultLen parameter is the available size in the result
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* buffer on input, and the actual length of the encoded DigestInfo
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* on output.
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*/
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#define DER_SHA1_DIGEST_LEN 20
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#define DER_SHA1_DIGEST_INFO_LEN 35
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DERReturn DEREncodeSHA1DigestInfo(
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const DERByte *sha1Digest,
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DERSize sha1DigestLen,
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DERByte *result, /* encoded result RETURNED here */
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DERSize *resultLen); /* IN/OUT */
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#define DER_SHA256_DIGEST_LEN 32
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#define DER_SHA256_DIGEST_INFO_LEN 51
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DERReturn DEREncodeSHA256DigestInfo(
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const DERByte *sha256Digest,
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DERSize sha256DigestLen,
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DERByte *result, /* encoded result RETURNED here */
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DERSize *resultLen); /* IN/OUT */
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/*
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* Likewise, create an encoded DIgestInfo for specified MD5 or MD2 digest.
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*/
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#define DER_MD_DIGEST_LEN 16
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#define DER_MD_DIGEST_INFO_LEN 34
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typedef enum {
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WD_MD2 = 1,
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WD_MD5 = 2
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} WhichDigest;
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DERReturn DEREncodeMDDigestInfo(
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WhichDigest whichDigest,
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const DERByte *mdDigest,
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DERSize mdDigestLen,
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DERByte *result, /* encoded result RETURNED here */
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DERSize *resultLen); /* IN/OUT */
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/* max sizes you'll need in the general cases */
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#define DER_MAX_DIGEST_LEN DER_SHA256_DIGEST_LEN
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#define DER_MAX_ENCODED_INFO_LEN DER_SHA256_DIGEST_INFO_LEN
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__END_DECLS
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#endif /* _DER_DIGEST_H_ */
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