ASN1 decoder

Decode a binary file into an ASN1 dump using an online interface to Peter Gutmann's dumpasn1 tool.

Click the "Browse" button and navigate to the file you want to analyse. The ASN1 decoder is useful for certificates, stored keys, and many types of TLV encoded data.

Select file:
 











Output courtesy of Peter Guttman's dumpasn1

Cryptomathic is one of the world's leading providers of security solutions to businesses across a wide range of industry sectors including finance, smart card, digital rights management and government. Cryptomathic provides cryptographic solutions for Authentication & Signing, EMV, CA-Compliance, Key Management, Public Key Infrastructure and ID Issuing.



Read White Paper