Mercurial > dropbear
view libtomcrypt/src/pk/asn1/der/octet/der_length_octet_string.c @ 913:6e2aa862e167
The arguments are for configure, not make!
author | Matt Johnston <matt@ucc.asn.au> |
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date | Fri, 07 Mar 2014 20:52:57 +0800 |
parents | 0cbe8f6dbf9e |
children | f849a5ca2efc |
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, [email protected], http://libtomcrypt.com */ #include "tomcrypt.h" /** @file der_length_octet_string.c ASN.1 DER, get length of OCTET STRING, Tom St Denis */ #ifdef LTC_DER /** Gets length of DER encoding of OCTET STRING @param noctets The number of octets in the string to encode @param outlen [out] The length of the DER encoding for the given string @return CRYPT_OK if successful */ int der_length_octet_string(unsigned long noctets, unsigned long *outlen) { LTC_ARGCHK(outlen != NULL); if (noctets < 128) { /* 04 LL DD DD DD ... */ *outlen = 2 + noctets; } else if (noctets < 256) { /* 04 81 LL DD DD DD ... */ *outlen = 3 + noctets; } else if (noctets < 65536UL) { /* 04 82 LL LL DD DD DD ... */ *outlen = 4 + noctets; } else if (noctets < 16777216UL) { /* 04 83 LL LL LL DD DD DD ... */ *outlen = 5 + noctets; } else { return CRYPT_INVALID_ARG; } return CRYPT_OK; } #endif /* $Source: /cvs/libtom/libtomcrypt/src/pk/asn1/der/octet/der_length_octet_string.c,v $ */ /* $Revision: 1.2 $ */ /* $Date: 2006/03/31 14:15:35 $ */