Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
18	38	google.auth.jwt.encode	call site: 00038	google.auth.iam.Signer._make_signing_request
15	79	google.auth.jwt.decode	call site: 00079	google.auth.jwt._verify_iat_and_exp
14	2	...fuzz_jwt_roundtrip.test_roundtrip_unverified	call site: 00002	google.auth.crypt._python_rsa.RSASigner.from_string
2	23	...fuzz_jwt_roundtrip.test_roundtrip_unverified	call site: 00023	fdp.ConsumeString
2	26	...fuzz_jwt_roundtrip.test_roundtrip_unverified	call site: 00026	google.auth.jwt.encode
2	32	google.auth.jwt.encode	call site: 00032	google.auth._helpers.unpadded_urlsafe_b64encode
2	35	google.auth._helpers.unpadded_urlsafe_b64encode	call site: 00035	google.auth._helpers.unpadded_urlsafe_b64encode
1	0	EP	call site: 00000	...fuzz_jwt_roundtrip.test_roundtrip_unverified
1	30	google.auth.jwt.encode	call site: 00030	header.update

Fuzzer calltree


         ...fuzz_jwt_roundtrip.TestOneInput

[function] [call site] 00000


           ...fuzz_jwt_roundtrip.test_roundtrip_unverified

[function] [call site] 00001


             atheris.FuzzedDataProvider

[function] [call site] 00002


             google.auth.crypt._python_rsa.RSASigner.from_string

[function] [call site] 00003


               google.auth._helpers.from_bytes

[function] [call site] 00004


                 <builtin>.isinstance

[function] [call site] 00005


                 value.decode

[function] [call site] 00006


                 <builtin>.isinstance

[function] [call site] 00007


               pyasn1_modules.pem.readPemBlocksFromFile

[function] [call site] 00008


               io.StringIO

[function] [call site] 00009


               rsa.key.PrivateKey.load_pkcs1

[function] [call site] 00010


               pyasn1.codec.der.decoder.decode

[function] [call site] 00011


               key_info.getComponentByName

[function] [call site] 00012


               rsa.key.PrivateKey.load_pkcs1

[function] [call site] 00013


               private_key_info.asOctets

[function] [call site] 00014


               google.auth.crypt._python_rsa.RSASigner.__init__

[function] [call site] 00015


             google.auth.crypt._cryptography_rsa.RSASigner.from_string

[function] [call site] 00016


               google.auth._helpers.to_bytes

[function] [call site] 00017


                 <builtin>.isinstance

[function] [call site] 00018


                 value.encode

[function] [call site] 00019


                 <builtin>.isinstance

[function] [call site] 00020


               cryptography.hazmat.primitives.serialization.load_pem_private_key

[function] [call site] 00021


               google.auth.crypt._cryptography_rsa.RSASigner.__init__

[function] [call site] 00022


             fdp.ConsumeIntInRange

[function] [call site] 00023


             fdp.ConsumeString

[function] [call site] 00024


             fdp.ConsumeIntInRange

[function] [call site] 00025


             fdp.ConsumeString

[function] [call site] 00026


             fdp.ConsumeString

[function] [call site] 00027


             google.auth.jwt.encode

[function] [call site] 00028


               header.update

[function] [call site] 00029


               <builtin>.isinstance

[function] [call site] 00030


               header.update

[function] [call site] 00031


               header.update

[function] [call site] 00032


               json.dumps

[function] [call site] 00033


               google.auth._helpers.unpadded_urlsafe_b64encode

[function] [call site] 00034


                 base64.urlsafe_b64encode

[function] [call site] 00035


               json.dumps

[function] [call site] 00036


               google.auth._helpers.unpadded_urlsafe_b64encode

[function] [call site] 00037


               google.auth.iam.Signer.sign

[function] [call site] 00038


                 google.auth.iam.Signer._make_signing_request

[function] [call site] 00039


                   google.auth._exponential_backoff.ExponentialBackoff.__iter__

[function] [call site] 00040


                     google.auth._exponential_backoff._BaseExponentialBackoff._reset

[function] [call site] 00041


                   google.auth._exponential_backoff.ExponentialBackoff.__next__

[function] [call site] 00042


                     google.auth._exponential_backoff._BaseExponentialBackoff._calculate_jitter

[function] [call site] 00043


                       random.uniform

[function] [call site] 00044


                     time.sleep

[function] [call site] 00045


                   google.auth._helpers.to_bytes

[function] [call site] 00046


                   _IAM_SIGN_ENDPOINT.replace

[function] [call site] 00047


                   json.dumps

[function] [call site] 00048


                   base64.b64encode

[function] [call site] 00049


                   google.auth._exponential_backoff.ExponentialBackoff.__init__

[function] [call site] 00050


                     <builtin>.super

[function] [call site] 00051


                   google.auth.api_key.Credentials.before_request

[function] [call site] 00052


                     google.auth.api_key.Credentials.apply

[function] [call site] 00053


                   response.data.decode

[function] [call site] 00054


                   json.loads

[function] [call site] 00055


                 base64.b64decode

[function] [call site] 00056


               google.auth._helpers.unpadded_urlsafe_b64encode

[function] [call site] 00057


               segments.append

[function] [call site] 00058


             google.auth.jwt.decode

[function] [call site] 00059


               google.auth.jwt._unverified_decode

[function] [call site] 00060


                 google.auth._helpers.to_bytes

[function] [call site] 00061


                 token.count

[function] [call site] 00062


                 token.split

[function] [call site] 00063


                 google.auth._helpers.padded_urlsafe_b64decode

[function] [call site] 00064


                   google.auth._helpers.to_bytes

[function] [call site] 00065


                   <builtin>.len

[function] [call site] 00066


                   base64.urlsafe_b64decode

[function] [call site] 00067


                 google.auth.jwt._decode_jwt_segment

[function] [call site] 00068


                   google.auth._helpers.padded_urlsafe_b64decode

[function] [call site] 00069


                   section_bytes.decode

[function] [call site] 00070


                   json.loads

[function] [call site] 00071


                   google.auth.exceptions.GoogleAuthError.__init__

[function] [call site] 00072


                     <builtin>.super

[function] [call site] 00073


                     kwargs.get

[function] [call site] 00074


                 google.auth.jwt._decode_jwt_segment

[function] [call site] 00075


                 <builtin>.isinstance

[function] [call site] 00076


                 <builtin>.isinstance

[function] [call site] 00077


               header.get

[function] [call site] 00078


               header.get

[function] [call site] 00079


               <builtin>.isinstance

[function] [call site] 00080


               certs.values

[function] [call site] 00081


               google.auth.crypt.verify_signature

[function] [call site] 00082


                 <builtin>.isinstance

[function] [call site] 00083


                 verifier_cls.from_string

[function] [call site] 00084


                 verifier.verify

[function] [call site] 00085


               google.auth.jwt._verify_iat_and_exp

[function] [call site] 00086


                 google.auth._helpers.utcnow

[function] [call site] 00087


                   datetime.datetime.now

[function] [call site] 00088


                   now.replace

[function] [call site] 00089


                 google.auth._helpers.datetime_to_secs

[function] [call site] 00090


                   value.utctimetuple

[function] [call site] 00091


                   calendar.timegm

[function] [call site] 00092


               payload.get

[function] [call site] 00093


               <builtin>.isinstance

[function] [call site] 00094