From e490e8e996ffe86ab3af0741f00b2fb7e90aaa98 Mon Sep 17 00:00:00 2001 From: Jonathan Weth Date: Thu, 1 Jul 2021 12:47:42 +0200 Subject: Some tries on cryptography --- createcert.py | 55 +++++++++++++++++++++++++++++ poetry.lock | 109 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++- pyproject.toml | 1 + 3 files changed, 164 insertions(+), 1 deletion(-) create mode 100644 createcert.py diff --git a/createcert.py b/createcert.py new file mode 100644 index 0000000..43e7384 --- /dev/null +++ b/createcert.py @@ -0,0 +1,55 @@ +import datetime + +from cryptography import x509 +from cryptography.hazmat.primitives import serialization, hashes +from cryptography.hazmat.primitives.asymmetric import rsa +from cryptography.x509 import NameOID + +key = rsa.generate_private_key( + public_exponent=65537, + key_size=2048, +) +# Write our key to disk for safe keeping +with open("test.key", "wb") as f: + f.write(key.private_bytes( + encoding=serialization.Encoding.PEM, + format=serialization.PrivateFormat.TraditionalOpenSSL, + encryption_algorithm=serialization.NoEncryption() + )) + +subject = issuer = x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u"US"), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u"California"), + x509.NameAttribute(NameOID.LOCALITY_NAME, u"San Francisco"), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u"My Company"), + x509.NameAttribute(NameOID.COMMON_NAME, u"mysite.com"), +]) +cert = x509.CertificateBuilder().subject_name( + subject +).issuer_name( + issuer +).public_key( + key.public_key() +).serial_number( + x509.random_serial_number() +).not_valid_before( + datetime.datetime.utcnow() +).not_valid_after( + # Our certificate will be valid for 10 days + datetime.datetime.utcnow() + datetime.timedelta(days=2) +).add_extension( + x509.SubjectAlternativeName([x509.DNSName(u"localhost")]), + critical=False, + # Sign our certificate with our private key +).sign(key, hashes.SHA256()) +# Write our certificate out to disk. +with open("test.crt", "wb") as f: + f.write(cert.public_bytes(serialization.Encoding.PEM)) + +with open("test.pem", "wb") as f: + f.write(key.private_bytes( + encoding=serialization.Encoding.PEM, + format=serialization.PrivateFormat.TraditionalOpenSSL, + encryption_algorithm=serialization.NoEncryption() + )) + f.write(cert.public_bytes(serialization.Encoding.PEM)) diff --git a/poetry.lock b/poetry.lock index d2145f7..4850128 100644 --- a/poetry.lock +++ b/poetry.lock @@ -156,6 +156,17 @@ category = "main" optional = false python-versions = "*" +[[package]] +name = "cffi" +version = "1.14.5" +description = "Foreign Function Interface for Python calling C code." +category = "main" +optional = false +python-versions = "*" + +[package.dependencies] +pycparser = "*" + [[package]] name = "chardet" version = "4.0.0" @@ -195,6 +206,25 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4" [package.extras] toml = ["toml"] +[[package]] +name = "cryptography" +version = "3.4.7" +description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers." +category = "main" +optional = false +python-versions = ">=3.6" + +[package.dependencies] +cffi = ">=1.12" + +[package.extras] +docs = ["sphinx (>=1.6.5,!=1.8.0,!=3.1.0,!=3.1.1)", "sphinx-rtd-theme"] +docstest = ["doc8", "pyenchant (>=1.6.11)", "twine (>=1.12.0)", "sphinxcontrib-spelling (>=4.0.1)"] +pep8test = ["black", "flake8", "flake8-import-order", "pep8-naming"] +sdist = ["setuptools-rust (>=0.11.4)"] +ssh = ["bcrypt (>=3.1.5)"] +test = ["pytest (>=6.0)", "pytest-cov", "pytest-subtests", "pytest-xdist", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,!=3.79.2)"] + [[package]] name = "curlylint" version = "0.13.0" @@ -721,6 +751,14 @@ category = "dev" optional = false python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*" +[[package]] +name = "pycparser" +version = "2.20" +description = "C parser in Python" +category = "main" +optional 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