search for: sc_pkcs15_decipher

...atform: All OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: Smartcard AssignedTo: openssh-bugs at mindrot.org ReportedBy: larsch at trustcenter.de There's a small bug in scard-opensc.c. The OpenSC function sc_pkcs15_decipher is called with the wrong flag. Currently sc_private_decrypt set the flag to 0 and hence OpenSC uses RSA raw to decipher the cryptogram => the Smartcard (or OpenSC) does not remove the PKCS#1 padding => v1 authentication fails because the returned data has the wrong length. To fix this problem...

Hi, I think there's a small bug in sc_private_decrypt in scard-opensc.c (see attached patch). The 'flags' parameter in the sc_pkcs15_decipher function call should be set to SC_ALGORITHM_RSA_PAD_PKCS1 and not to 0. If flags == 0 then sc_pkcs15_decipher uses RSA raw as a default method which has (at least) two drawbacks a) not all cards support RSA raw and b) sc_pkcs15_decipher does not remove the PKCS#1 padding (and therefore the v1 authe...

http://bugzilla.mindrot.org/show_bug.cgi?id=221 ------- Additional Comments From markus at openbsd.org 2002-04-18 02:04 ------- Created an attachment (id=81) readme patch ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee.