asn1tools_compile_string_ber_encode_decode_quickstart.py

1import asn1tools
2
3# The ASN.1 specification
4foo_asn = '''
5Foo DEFINITIONS ::= BEGIN
6
7    Question ::= SEQUENCE {
8        id        INTEGER,
9        question  IA5String
10    }
11
12    Answer ::= SEQUENCE {
13        id        INTEGER,
14        answer    BOOLEAN
15    }
16
17END
18'''
19
20# Compile the ASN.1 specification
21foo = asn1tools.compile_string(foo_asn, 'ber')
22
23# Encode a 'Question' message
24encoded = foo.encode('Question', {'id': 1, 'question': 'Is 1+1=2?'})
25
26print(f'Encoded: {encoded.hex()}')
27
28# Decode the message
29decoded = foo.decode('Question', encoded)
30
31print(f'Decoded: {decoded}')