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| author | S. Solomon Darnell | 2025-03-28 21:52:21 -0500 |
|---|---|---|
| committer | S. Solomon Darnell | 2025-03-28 21:52:21 -0500 |
| commit | 4a52a71956a8d46fcb7294ac71734504bb09bcc2 (patch) | |
| tree | ee3dc5af3b6313e921cd920906356f5d4febc4ed /.venv/lib/python3.12/site-packages/rsa/util.py | |
| parent | cc961e04ba734dd72309fb548a2f97d67d578813 (diff) | |
| download | gn-ai-master.tar.gz | |
Diffstat (limited to '.venv/lib/python3.12/site-packages/rsa/util.py')
| -rw-r--r-- | .venv/lib/python3.12/site-packages/rsa/util.py | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/rsa/util.py b/.venv/lib/python3.12/site-packages/rsa/util.py new file mode 100644 index 00000000..8a598cca --- /dev/null +++ b/.venv/lib/python3.12/site-packages/rsa/util.py @@ -0,0 +1,97 @@ +# Copyright 2011 Sybren A. Stüvel <sybren@stuvel.eu>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Utility functions."""
+
+import sys
+from optparse import OptionParser
+
+import rsa.key
+
+
+def private_to_public() -> None:
+ """Reads a private key and outputs the corresponding public key."""
+
+ # Parse the CLI options
+ parser = OptionParser(
+ usage="usage: %prog [options]",
+ description="Reads a private key and outputs the "
+ "corresponding public key. Both private and public keys use "
+ "the format described in PKCS#1 v1.5",
+ )
+
+ parser.add_option(
+ "-i",
+ "--input",
+ dest="infilename",
+ type="string",
+ help="Input filename. Reads from stdin if not specified",
+ )
+ parser.add_option(
+ "-o",
+ "--output",
+ dest="outfilename",
+ type="string",
+ help="Output filename. Writes to stdout of not specified",
+ )
+
+ parser.add_option(
+ "--inform",
+ dest="inform",
+ help="key format of input - default PEM",
+ choices=("PEM", "DER"),
+ default="PEM",
+ )
+
+ parser.add_option(
+ "--outform",
+ dest="outform",
+ help="key format of output - default PEM",
+ choices=("PEM", "DER"),
+ default="PEM",
+ )
+
+ (cli, cli_args) = parser.parse_args(sys.argv)
+
+ # Read the input data
+ if cli.infilename:
+ print(
+ "Reading private key from %s in %s format" % (cli.infilename, cli.inform),
+ file=sys.stderr,
+ )
+ with open(cli.infilename, "rb") as infile:
+ in_data = infile.read()
+ else:
+ print("Reading private key from stdin in %s format" % cli.inform, file=sys.stderr)
+ in_data = sys.stdin.read().encode("ascii")
+
+ assert type(in_data) == bytes, type(in_data)
+
+ # Take the public fields and create a public key
+ priv_key = rsa.key.PrivateKey.load_pkcs1(in_data, cli.inform)
+ pub_key = rsa.key.PublicKey(priv_key.n, priv_key.e)
+
+ # Save to the output file
+ out_data = pub_key.save_pkcs1(cli.outform)
+
+ if cli.outfilename:
+ print(
+ "Writing public key to %s in %s format" % (cli.outfilename, cli.outform),
+ file=sys.stderr,
+ )
+ with open(cli.outfilename, "wb") as outfile:
+ outfile.write(out_data)
+ else:
+ print("Writing public key to stdout in %s format" % cli.outform, file=sys.stderr)
+ sys.stdout.write(out_data.decode("ascii"))
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