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libmisc/salt.c: bcrypt should use $2b$ as prefix for setting.

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This prefix is the recommended one for new bcrypt hashes
for a long time.

Signed-off-by: Björn Esser <besser82@fedoraproject.org>
This commit is contained in:
Björn Esser 2021-06-12 13:54:14 +02:00
parent 7a3bb4d0ea
commit 738d92a4bd
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GPG Key ID: F52E98007594C21D
1 changed files with 2 additions and 6 deletions
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8
libmisc/salt.c
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@ -90,12 +90,8 @@ static void seedRNG (void)
*/
#define MAGNUM(array,ch) (array)[0]=(array)[2]='$',(array)[1]=(ch),(array)[3]='\0'
#ifdef USE_BCRYPT
/*
* Using the Prefix $2a$ to enable an anti-collision safety measure in musl libc.
* Negatively affects a subset of passwords containing the '\xff' character,
* which is not valid UTF-8 (so "unlikely to cause much annoyance").
*/
#define BCRYPTMAGNUM(array) (array)[0]=(array)[3]='$',(array)[1]='2',(array)[2]='a',(array)[4]='\0'
/* Use $2b$ as prefix for compatibility with OpenBSD's bcrypt. */
#define BCRYPTMAGNUM(array) (array)[0]=(array)[3]='$',(array)[1]='2',(array)[2]='b',(array)[4]='\0'
#endif /* USE_BCRYPT */
#if defined(USE_SHA_CRYPT) || defined(USE_BCRYPT)