$ chmod a+x dependencies.sh
$ ./dependencies.shThe script dependencies.sh is designed to work with Fedora. If any problems arise, contact me at miguelrodriguesdossantos@gmail.com.
To test the correctness of the implementation, I wrote some test cases.
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signature.cpp
Signs a document and verifies the validity of the signature.
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verify.cpp
Verifies the validity of a given signature.
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diffie-hellman.cpp
Uses ECC to exchange a symmetric key between two individuals (ECDH).
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performance-benchmark.cpp
Measure how many key pairs per second a given machine is capable of generating using this implementation.
$ make allThis creates all the executables: "signature", "verify", "diffie-hellman", "performance-benchmark", .
To run "signature", pass a file as an argument. This file will be signed and the signature will be verified. Example:
$ ./signature README.txt
Signing with public key: D3DF610A580209070840D4BA9078D9DCCD0F6EE526BFCF858D38FB4A93D9E9F8 3AE61BB01033A451FCA47758A87A572CE658A958DA8BB6DB421AD11EAF23B797
Signing with secret key: B1ED407D2799D701D2C0708FF158A0D34EBC4501C42B60FD6BC209E3D2EFDC00
Signature file : README.txt.sig
File hash: 78e2a90ba3ede7cadd20df69044871b0b4c180b8096fd7de1b1b4748b28e33cb
===> Signature is valid!You can then verify the signature using
$ ./verify-sig README.txt README.txt.sig D3DF610A580209070840D4BA9078D9DCCD0F6EE526BFCF858D38FB4A93D9E9F8 3AE61BB01033A451FCA47758A87A572CE658A958DA8BB6DB421AD11EAF23B797
===> Signature is valid!To run diffie-hellman:
$ ./diffie-hellman
Choose a curve:
1) nistp224
2) secp256k1
Option: 1
Name : Alice
Secret : B1905C680555D1E6B20D90C204466A115152B48C80C699F96BD645D9
Point : B01AB449B8C90DCEF018ED787FBD136A0E98A2BB93F01B93833E9788 3D0401D6A9C27AECF13C08F7BC284171D3BBE469588FEEE9A0687301
SharedSecret : F150CC687DAA804271C37B2E322FFD6688E0B8C00934BA3CE3F32489 E029A730490F781BC02C91639BBF592189F6BAFD157805CA2B9B30FB
Name : Bob
Secret : DBD5112A09BA2D636014DE980FC6A1D2CA66615FAE4379A92F7D2FC2
Point : B16352798D723DE9492AF01D74637ABF8606FDEDF3EFC844A9808FD6 8B59ED91C00DB588058E4B939A6D55DD8BAF3474429D49A5BE2B5E20
SharedSecret : F150CC687DAA804271C37B2E322FFD6688E0B8C00934BA3CE3F32489 E029A730490F781BC02C91639BBF592189F6BAFD157805CA2B9B30FB
The secrets match: Diffie-Hellman was performed successfully!To run the performance tests:
$ ./performance-benchmark
Choose a curve:
1) nistp224
2) secp256k1
Option: 1
Benchmark: 21.2766 key pairs per second