Hello Viktor, Thanks for the reply.
Is there any limitations with Key Size? When cert 2 is received by the client from the server. I get a incorrect tag length error ? Currently i am using Openssl Version 0.9.8. Same cert(Cert2) works correctly for v1.0.0.d -Thanks mithun On Fri, Mar 14, 2014 at 8:02 PM, Viktor Dukhovni <openssl-us...@dukhovni.org > wrote: > On Fri, Mar 14, 2014 at 06:18:49PM +0530, Mithun Kumar wrote: > > > What is the difference between these two formats > > The first contains a 1024 bit RSA-SHA1 public key, the second a > 2048-bit key. > > > Below is the ASN output using certuil tool. > > > > *Cert1:-* > > > > 0618: 30 0d ; SEQUENCE (d Bytes) > > 061a: | 06 09 ; OBJECT_ID (9 Bytes) > > 061c: | | 2a 86 48 86 f7 0d 01 01 05 > > | | ; 1.2.840.113549.1.1.5 sha1RSA > > 0625: | 05 00 ; NULL (0 Bytes) > > 0627: 03 81 81 ; BIT_STRING (81 Bytes) > > > > *Cert2:-* > > > > 0780: 30 0d ; SEQUENCE (d Bytes) > > 0782: | 06 09 ; OBJECT_ID (9 Bytes) > > 0784: | | 2a 86 48 86 f7 0d 01 01 05 > > | | ; 1.2.840.113549.1.1.5 sha1RSA > > 078d: | 05 00 ; NULL (0 Bytes) > > 078f: 03 82 01 01 ; BIT_STRING (101 Bytes) > > 0793: 00 > > > > What does the highlighted values indicate? Any idea? > > The signature algorithm name and key length. The byte counts are > reported in hex by the tool you're using, so 0x101 is 257 decimal, > and 0x81 is 129 decimal. > > -- > Viktor. > ______________________________________________________________________ > OpenSSL Project http://www.openssl.org > User Support Mailing List openssl-users@openssl.org > Automated List Manager majord...@openssl.org >