Update links to Rijndael paper and NIST SP 800-90 DRBGs
The link to the DRBG paper points to the March 2007 version, the same as the
original link (rather than the latest version).
The amended Rijndael paper has a two-page "Note on naming" prefix.
Fixes #7193
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
diff --git a/library/aes.c b/library/aes.c
index 6d718f4..592ca64 100644
--- a/library/aes.c
+++ b/library/aes.c
@@ -19,7 +19,7 @@
/*
* The AES block cipher was designed by Vincent Rijmen and Joan Daemen.
*
- * http://csrc.nist.gov/encryption/aes/rijndael/Rijndael.pdf
+ * https://csrc.nist.gov/csrc/media/projects/cryptographic-standards-and-guidelines/documents/aes-development/rijndael-ammended.pdf
* http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf
*/