ASN.1 IA5String tag: 22

The ASN.1 IA5String type uses 7-bit characters. It is equivalent to the ASCII alphabet.

ASCIISample ::= IA5String

alphaControl IA5String ::= {"ABCD", cr, "EFGH"}
cr IA5String ::= {0,13}

IA5 ::= IA5String
betaNewline IA5 ::= {"ABCD EFGH"}

In BER, the IA5String type value defined in the example above is encoded as follows:

16 09 414243442045464748

The IA5String type can be constrained by a single value, by size constraints, and by permitted alphabet constraints.