Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
2	1	...fuzz_sym.TestInput	call site: 00001	cryptography.fernet.Fernet.generate_key
2	54	cryptography.fernet.Fernet._get_unverified_token_data	call site: 00054	time.time
2	64	cryptography.hazmat.primitives.ciphers.base.Cipher.decryptor	call site: 00064	cryptography.hazmat.primitives.ciphers.algorithms.AES.__init__
1	5	cryptography.fernet.Fernet.generate_key	call site: 00005	cryptography.fernet.Fernet.__init__
1	34	cryptography.hazmat.primitives.ciphers.base.Cipher.encryptor	call site: 00034	cryptography.hazmat.primitives.ciphers.algorithms.AES.__init__
1	39	cryptography.hazmat.primitives._cipheralgorithm._verify_key_size	call site: 00039	cryptography.hazmat.primitives.ciphers.modes.CBC.__init__
1	43	cryptography.fernet.Fernet._encrypt_from_parts	call site: 00043	current_time.to_bytes
1	79	cryptography.hazmat.backends.openssl.backend.Backend.hmac_supported	call site: 00079	.isinstance

Fuzzer calltree


         ...fuzz_sym.TestInput

[function] [call site] 00000


           atheris.FuzzedDataProvider

[function] [call site] 00001


           fdp.ConsumeBytes

[function] [call site] 00002


           cryptography.fernet.Fernet.generate_key

[function] [call site] 00003


             os.urandom

[function] [call site] 00004


             base64.urlsafe_b64encode

[function] [call site] 00005


           cryptography.fernet.Fernet.__init__

[function] [call site] 00006


             base64.urlsafe_b64decode

[function] [call site] 00007


             <builtin>.len

[function] [call site] 00008


           cryptography.fernet.Fernet.encrypt

[function] [call site] 00009


             time.time

[function] [call site] 00010


             <builtin>.int

[function] [call site] 00011


             cryptography.fernet.Fernet.encrypt_at_time

[function] [call site] 00012


               os.urandom

[function] [call site] 00013


               cryptography.fernet.Fernet._encrypt_from_parts

[function] [call site] 00014


                 cryptography.utils._check_bytes

[function] [call site] 00015


                   <builtin>.isinstance

[function] [call site] 00016


                 cryptography.hazmat.primitives.padding.PKCS7.__init__

[function] [call site] 00017


                   cryptography.hazmat.primitives.padding._byte_padding_check

[function] [call site] 00018


                 cryptography.hazmat.primitives.padding.PKCS7.padder

[function] [call site] 00019


                   cryptography.hazmat.bindings._rust.PKCS7PaddingContext

[function] [call site] 00020


                 cryptography.hazmat.bindings._rust.PKCS7PaddingContext.update

[function] [call site] 00021


                 cryptography.hazmat.bindings._rust.PKCS7PaddingContext.finalize

[function] [call site] 00022


                 cryptography.hazmat.primitives.ciphers.base.Cipher.__init__

[function] [call site] 00023


                   <builtin>.isinstance

[function] [call site] 00024


                   <builtin>.isinstance

[function] [call site] 00025


                   cryptography.hazmat.primitives.ciphers.modes._check_aes_key_length

[function] [call site] 00026


                   cryptography.hazmat.primitives.ciphers.modes._check_iv_and_key_length

[function] [call site] 00027


                     <builtin>.isinstance

[function] [call site] 00028


                     cryptography.hazmat.primitives.ciphers.modes._check_aes_key_length

[function] [call site] 00029


                     cryptography.hazmat.primitives.ciphers.modes._check_iv_length

[function] [call site] 00030


                       <builtin>.len

[function] [call site] 00031


                 cryptography.hazmat.primitives.ciphers.base.Cipher.encryptor

[function] [call site] 00032


                   <builtin>.isinstance

[function] [call site] 00033


                   cryptography.hazmat.bindings._rust.openssl.ciphers.create_encryption_ctx

[function] [call site] 00034


                 cryptography.hazmat.primitives.ciphers.algorithms.AES.__init__

[function] [call site] 00035


                   cryptography.hazmat.primitives._cipheralgorithm._verify_key_size

[function] [call site] 00036


                     cryptography.utils._check_byteslike

[function] [call site] 00037


                       <builtin>.memoryview

[function] [call site] 00038


                     <builtin>.len

[function] [call site] 00039


                 cryptography.hazmat.primitives.ciphers.modes.CBC.__init__

[function] [call site] 00040


                   cryptography.utils._check_byteslike

[function] [call site] 00041


                 encryptor.update

[function] [call site] 00042


                 encryptor.finalize

[function] [call site] 00043


                 current_time.to_bytes

[function] [call site] 00044


                 cryptography.hazmat.bindings._rust.openssl.hmac.HMAC

[function] [call site] 00045


                 h.update

[function] [call site] 00046


                 h.finalize

[function] [call site] 00047


                 base64.urlsafe_b64encode

[function] [call site] 00048


           cryptography.fernet.Fernet.decrypt

[function] [call site] 00049


             cryptography.fernet.Fernet._get_unverified_token_data

[function] [call site] 00050


               <builtin>.isinstance

[function] [call site] 00051


               base64.urlsafe_b64decode

[function] [call site] 00052


               <builtin>.len

[function] [call site] 00053


               int.from_bytes

[function] [call site] 00054


             time.time

[function] [call site] 00055


             <builtin>.int

[function] [call site] 00056


             cryptography.fernet.Fernet._decrypt_data

[function] [call site] 00057


               cryptography.fernet.Fernet._verify_signature

[function] [call site] 00058


                 cryptography.hazmat.bindings._rust.openssl.hmac.HMAC

[function] [call site] 00059


                 h.update

[function] [call site] 00060


                 h.verify

[function] [call site] 00061


               cryptography.hazmat.primitives.ciphers.base.Cipher.__init__

[function] [call site] 00062


               cryptography.hazmat.primitives.ciphers.base.Cipher.decryptor

[function] [call site] 00063


                 cryptography.hazmat.bindings._rust.openssl.ciphers.create_decryption_ctx

[function] [call site] 00064


               cryptography.hazmat.primitives.ciphers.algorithms.AES.__init__

[function] [call site] 00065


               cryptography.hazmat.primitives.ciphers.modes.CBC.__init__

[function] [call site] 00066


               decryptor.update

[function] [call site] 00067


               decryptor.finalize

[function] [call site] 00068


               cryptography.hazmat.primitives.padding.PKCS7.__init__

[function] [call site] 00069


               cryptography.hazmat.primitives.padding.PKCS7.unpadder

[function] [call site] 00070


                 cryptography.hazmat.bindings._rust.PKCS7UnpaddingContext

[function] [call site] 00071


               cryptography.hazmat.bindings._rust.PKCS7UnpaddingContext.update

[function] [call site] 00072


               cryptography.hazmat.bindings._rust.PKCS7UnpaddingContext.finalize

[function] [call site] 00073


           fdp.ConsumeBytes

[function] [call site] 00074


           fdp.ConsumeBytes

[function] [call site] 00075


           cryptography.hazmat.primitives.kdf.pbkdf2.PBKDF2HMAC.__init__

[function] [call site] 00076


             cryptography.hazmat.backends.openssl.backend.Backend.pbkdf2_hmac_supported

[function] [call site] 00077


               cryptography.hazmat.backends.openssl.backend.Backend.hmac_supported

[function] [call site] 00078


                 <builtin>.isinstance

[function] [call site] 00079


                 <builtin>.isinstance

[function] [call site] 00080


                 cryptography.hazmat.backends.openssl.backend.Backend.hash_supported

[function] [call site] 00081


                   <builtin>.isinstance

[function] [call site] 00082


                   cryptography.hazmat.bindings._rust.openssl.hashes.hash_supported

[function] [call site] 00083


             cryptography.utils._check_bytes

[function] [call site] 00084


           cryptography.hazmat.primitives.kdf.pbkdf2.PBKDF2HMAC.derive

[function] [call site] 00085


             cryptography.hazmat.bindings._rust.openssl.kdf.derive_pbkdf2_hmac

[function] [call site] 00086


           base64.urlsafe_b64encode

[function] [call site] 00087


           cryptography.fernet.Fernet.__init__

[function] [call site] 00088


           cryptography.fernet.Fernet.encrypt

[function] [call site] 00089


           cryptography.fernet.Fernet.decrypt

[function] [call site] 00090