Function DER_cert_to_PEM_cert

Lib/ssl.py:1483–1491

Takes a certificate in binary DER format and returns the PEM version of it as a string.

(der_cert_bytes)

PEM_FOOTER = "-----END CERTIFICATE-----"

def DER_cert_to_PEM_cert(der_cert_bytes):
    """Takes a certificate in binary DER format and returns the
    PEM version of it as a string."""

    f = str(base64.standard_b64encode(der_cert_bytes), 'ASCII', 'strict')
    ss = [PEM_HEADER]
    ss += [f[i:i+64] for i in range(0, len(f), 64)]
    ss.append(PEM_FOOTER + '\n')
    return '\n'.join(ss)

def PEM_cert_to_DER_cert(pem_cert_string):
    """Takes a certificate in ASCII PEM format and returns the