[DIRSERVER-1351] DERInteger class provides no access to the full possible range of values a DERInteger can contain

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Component/s: asn1
• Environment: any
• Assignee: Emmanuel Lécharny
• Reporter: Brad Davis
• Created: 20/Apr/09 22:38
• Updated: 26/May/10 10:43
• Resolved: 26/May/09 16:55

Description

ASN.1 encoded DERInteger objects are used for storing keypairs in base64 encoded public key blocks such as this one:

----BEGIN RSA PUBLIC KEY----
MIGJAoGBAMQgV2gXLbXgesWgeAsj8P1Uvm/zibrFXqwDq27lLKNgWGYGX2ax3LyT
3nzI1Y5oLs4kPKTsMM5ft9aokwf417lKoCRlZc9ptfRbgxDx90c9GtWVmkrmDvCK
ae59TMoXIiGfZiwWT6KKq5Zm9/Fu2Il3B2vHGkKJYKixmiBJRKp/AgMBAAE=
----END RSA PUBLIC KEY----

This contains a DERSequence of two DERInteger objects representing the public exponent and the modulus of the key. But the modulus is far to large to be represented by 'intValue()', so there is no way to convert from this into a PublicKey object.