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Use ASN1 UTC tags for dates before 2000

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Signed-off-by: Werner Lewis <werner.lewis@arm.com>
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Werner Lewis
2022-05-10 12:23:13 +01:00
parent a0026604a2
commit 1b54a05f77
4 changed files with 81 additions and 10 deletions
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2
library/x509write_crt.c
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@ -299,7 +299,7 @@ static int x509_write_time( unsigned char **p, unsigned char *start,
/*
* write MBEDTLS_ASN1_UTC_TIME if year < 2050 (2 bytes shorter)
*/
if( t[0] == '2' && t[1] == '0' && t[2] < '5' )
if( t[0] < '2' || ( t[0] == '2' && t[1] == '0' && t[2] < '5' ) )
{
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start,
(const unsigned char *) t + 2,