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GH355: Implement HKDF

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This patch implements the HMAC-based Extract-and-Expand Key Derivation
Function (HKDF) as defined in RFC 5869.

It is required to implement the QUIC and TLS 1.3 protocols (among others).

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
This commit is contained in:
Alessandro Ghedini
2016-03-02 23:58:27 +00:00
committed by Rich Salz
parent b894054e3f
commit aacfb134be
13 changed files with 552 additions and 7 deletions
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9
crypto/objects/obj_dat.h
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@@ -60,9 +60,9 @@
* [including the GNU Public Licence.]
*/
#define NUM_NID 1036
#define NUM_SN 1029
#define NUM_LN 1029
#define NUM_NID 1037
#define NUM_SN 1030
#define NUM_LN 1030
#define NUM_OBJ 951
static const unsigned char lvalues[6722]={
@@ -2704,6 +2704,7 @@ static const ASN1_OBJECT nid_objs[NUM_NID]={
{"pkInitKDC","Signing KDC Response",NID_pkInitKDC,7,&(lvalues[6696]),0},
{"X25519","X25519",NID_X25519,9,&(lvalues[6703]),0},
{"X448","X448",NID_X448,9,&(lvalues[6712]),0},
{"HKDF","hkdf",NID_hkdf,0,NULL,0},
};
static const unsigned int sn_objs[NUM_SN]={
@@ -2813,6 +2814,7 @@ static const unsigned int sn_objs[NUM_SN]={
67, /* "DSA-old" */
297, /* "DVCS" */
99, /* "GN" */
1036, /* "HKDF" */
855, /* "HMAC" */
780, /* "HMAC-MD5" */
781, /* "HMAC-SHA1" */
@@ -4152,6 +4154,7 @@ static const unsigned int ln_objs[NUM_LN]={
1012, /* "grasshopper-ecb" */
1017, /* "grasshopper-mac" */
1014, /* "grasshopper-ofb" */
1036, /* "hkdf" */
855, /* "hmac" */
780, /* "hmac-md5" */
781, /* "hmac-sha1" */