ber_bvstr - Linux

Overview

ber_bvstr converts a BER-encoded BitString value to an ASCII string representation. It’s commonly used in security and cryptography domains for data manipulation and interpretation.

Syntax

ber_bvstr [options] encoded_string

Options/Flags

• -i, –indent: Indent the output string for readability.
• -h, –help: Display usage information and exit.
• -v, –version: Display version information and exit.

Examples

Convert a Hex-encoded BitString to String:

$ echo "8001020304050607" | ber_bvstr
01020304050607

Convert a DER-encoded BitString to String with Indentation:

$ ber_bvstr -i "3003020101"
01
  01

Common Issues

Input String Not in BER format:
Ensure that the input string is a BER-encoded BitString. If not, it will lead to incorrect conversion.

Integration

Combine with OpenSSL for Cert Verification:

openssl x509 -noout -pubkey -in cert.pem | ber_bvstr -i

Related Commands

• asn1parse: Parse and decode ASN.1-encoded data.
• openssl: Extensive toolkit for cryptography and security operations.