Crates.io | rsacracker |
lib.rs | rsacracker |
version | 0.8.0 |
source | src |
created_at | 2023-06-22 10:24:37.601475 |
updated_at | 2024-11-11 14:57:59.866922 |
description | Powerful RSA cracker for CTFs. Supports RSA, X509, OPENSSH in PEM and DER formats. |
homepage | |
repository | https://github.com/skyf0l/RsaCracker |
max_upload_size | |
id | 897170 |
size | 318,112 |
Powerful RSA cracker for CTFs. Supports RSA, X509, OPENSSH in PEM and DER formats.
RsaCracker provides a simple interface to crack RSA keys and ciphers. With a collection of thousands of attacks, no key can survive against RsaCracker!
From crates.io:
cargo install rsacracker
Note: To build on windows, you need to use MSYS2. This is required because of the rug dependency. See building-on-windows for more information.
Powerful RSA cracker for CTFs. Supports RSA, X509, OPENSSH in PEM and DER formats.
Usage: rsacracker [OPTIONS]
Options:
-r, --raw <RAW> Retrieve values from raw file
-c, --cipher <CIPHER> Cipher: the message to uncipher
-f, --cipherfile <CIPHERFILE> Cipher file: the file to uncipher
-o, --outfile <OUTFILE> Write unciphered data to a file. If many unciphered data are found, they will be written to files suffixed with _1, _2, ...
-n <N> Modulus
-e <E> Public exponent. Default: 65537 [default: 65537]
-p <P> Prime number p
-q <Q> Prime number q
-d <D> Private exponent
--phi <PHI> Phi or Euler's totient function of n. (p-1)(q-1)
--dp <DP> dP or dmp1 CRT exponent. (d mod p-1)
--dq <DQ> dQ or dmq1 CRT exponent. (d mod q-1)
--qinv <QINV> qInv or iqmp CRT coefficient. (q^-1 mod p)
--pinv <PINV> pInv or ipmq CRT coefficient. (p^-1 mod q)
--sum-pq <SUM_PQ> The sum of the two primes p and q
--dlog Discrete logarithm attack. When c and e are swapped in the RSA encryption formula. (e^c mod n)
-k, --key <KEY> Public or private key file. (RSA, X509, OPENSSH in PEM and DER formats.)
--password <PASSWORD> Private key password/passphrase if encrypted
--public Print the public key in PEM format
--private Print the private key in PEM format
--addpassword <ADDPASSWORD> Add a password/passphrase to the private key
--showinputs Print all the input parameters
--dump Print the private RSA key variables n, e, p, q and d
--dumpext Print the extended RSA key variables n, e, p, q, d, dP, dQ, pInv and qInv
--factors Print all factors of n
-t, --threads <THREADS> Number of threads to use. Default: number of CPUs [default: 12]
-a, --attack <ATTACK> Specify attacks to run. Default: all. (e.g. --attacks ecm,wiener,sparse)
--exclude <EXCLUDE> Specify attacks to exclude. Default: none. (e.g. --exclude ecm,wiener,sparse)
--list List all available attacks
-h, --help Print help
-V, --version Print version
You can also use a dump as input:
rsacracker [OPTIONS] < challenge.txt
[RESULTS]
$ cat challenge.txt | rsacracker [OPTIONS]
[RESULTS]
$ cat challenge.txt
c: 7839407718[...]0577093673
n = 9359619564[...]3745124619
e= 1595235523[...]6275096193
rsacracker --key public.pem -c 0xdeadbeef -o result.txt
rsacracker -c 0xdeadbeef -n 123...789 -e 65537
rsacracker -c 0xdeadbeef -n 123...789 -e 65537 --phi 123 --dp 123 --dq 123 --qinv 123 --pinv 123
rsacracker --key public.pem -f secret.txt.enc
rsacracker --attack known_phi -n 123...789 -e 65537 --phi 0xdeadbeef
rsacracker --key public.pem --private
rsacracker -e 65537 -n 0xdeadbeef --public
rsacracker --key private.pem --dump
$ rsacracker --key private.pem --dumpext
rsacracker --key private.pem --password R54Cr4ck3R --private
rsacracker --key private.pem --addpassword R54Cr4ck3R --private
rsacracker -n 123...789 --factors
rsacracker --key public.pem -c 0xdeadbeef --dlog
From dockerhub:
docker pull skyf0l/rsacracker
docker run -it --rm -v $PWD:/data skyf0l/rsacracker [args]
Or build it yourself:
DOCKER_BUILDKIT=1 docker build . --file Dockerfile -t rsacracker
docker run -it --rm -v $PWD:/data rsacracker [args]
Licensed under either of
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.