[PATCH] libosmocore[master]: Clarify GPRS algorithm

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Max gerrit-no-reply at lists.osmocom.org
Tue Jun 28 15:07:25 UTC 2016


Review at  https://gerrit.osmocom.org/432

Clarify GPRS algorithm

Add spec reference and set explicit values for enum representing
ciphering algorithm for GPRS encryption.

Change-Id: Ia9ee429b73a37d52599fce70778cfe87b767411c
Related: OS#1582
---
M include/osmocom/crypt/gprs_cipher.h
1 file changed, 6 insertions(+), 5 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/32/432/1

diff --git a/include/osmocom/crypt/gprs_cipher.h b/include/osmocom/crypt/gprs_cipher.h
index d6edefa..c4ba980 100644
--- a/include/osmocom/crypt/gprs_cipher.h
+++ b/include/osmocom/crypt/gprs_cipher.h
@@ -4,12 +4,13 @@
 
 #define GSM0464_CIPH_MAX_BLOCK	1523
 
+/* 3GPP TS 24.008 § 10.5.5.3 */
 enum gprs_ciph_algo {
-	GPRS_ALGO_GEA0,
-	GPRS_ALGO_GEA1,
-	GPRS_ALGO_GEA2,
-	GPRS_ALGO_GEA3,
-	GPRS_ALGO_GEA4,
+	GPRS_ALGO_GEA0 = 0,
+	GPRS_ALGO_GEA1 = 1,
+	GPRS_ALGO_GEA2 = 2,
+	GPRS_ALGO_GEA3 = 3,
+	GPRS_ALGO_GEA4 = 4,
 	_GPRS_ALGO_NUM
 };
 

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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ia9ee429b73a37d52599fce70778cfe87b767411c
Gerrit-PatchSet: 1
Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Owner: Max <msuraev at sysmocom.de>



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