Log message:
Changes 0.22.0:
Added parser.peek()
Implemented proper support for BER-encoded indefinite length strings of all \ 
kinds - core.BitString, core.OctetString and all of the core classes that are \ 
natively represented as Python unicode strings
Fixed a bug with encoding LDAP URLs in x509.URI
Correct x509.DNSName to allow a leading ., such as when used with \ 
x509.NameConstraints
Fixed an issue with dumping the parsed contents of core.Any when explicitly tagged
Custom setup.py clean now accepts the short -a flag for compatibility

Log message:
Import py-asn1crypto-0.21.1 as security/py-asn1crypto.

Fast ASN.1 parser and serializer with definitions for private keys,
public keys, certificates, CRL, OCSP, CMS, PKCS#3, PKCS#7, PKCS#8,
PKCS#12, PKCS#5, X.509 and TSP.