We are a "third-party organization" oriented towards Post Quantum Cryptography technology and research. We are committed to anti-quantum cryptography research and support the technology ecology of the tidecoin.
What is Tidecoin?
By introducing the Post-Quantum security signature algorithm, a decentralized currency system Tidecoin is designed.
The operation of the Tidecoin network is based on mathematical proofs and physical laws.
The proof of power consensus and CPU friendly POW algorithm make Tidecoin achieving a breakthrough level in decentralization, and security.
The currency design enables Tidecoin to run on various types of ubiquitous computing devices, enabling pervasive process of value, even that in multiple worlds.
Falcon Signature - the Fast-Fourier Lattice-based Compact Signatures over NTRU
While resistance to quantum computers is the main drive for the design and development of Falcon, the algorithm may achieve significant adoption only if it is also reasonably efficient in our current world, where quantum computers do not really exist.
Key and Signature Sizes
Parameter set
Public key size (Byte)
Signature size (Byte)
Falcon-512
897
666
Falcon-1024
1,793
1,280
Private key size is about three times that of a signature, and it could be theoretically compressed down to a small PRNG seed (say, 32 bytes)
Using the reference implementation on a common desktop computer (Intel® Core® i5-8259U at 2.3 GHz, TurboBoost disabled)
Performance of generating signatures
Parameter set
memory
Ｋey gen.
sign/s
verify/s
Falcon-512
14,336 Byte
8.64 ms
5,948.1
27,933.0
Falcon-1024
28,672 Byte
27.45 ms
2,913.0
13,650.0
To give a point of comparison, Falcon-512 is roughly equivalent, in classical security terms, to RSA-2048, whose signatures and public keys use 256 bytes each. On the specific system on which these measures were taken, OpenSSL's thoroughly optimized assembly implementation achieves about 1140 signatures per second; thus, Falcon's reference implementation, which is portable and uses no inline assembly on x86 CPUs, is already more than five times faster, and it scales better to larger sizes (for long-term security).
The public key cryptosystem was a breakthrough in modern cryptography in the late 1970s. It has become an increasingly important part of our cryptography communications network over The Internet and other communication systems rely heavily on the Diffie-Hellman key exchange, RSA encryption, and the use of the DSA, ECDSA or related algorithms for numerical signatures. The security of these cryptosystems depends on the difficulty level of number theory problems such as integer decomposition and discrete logarithm problems. In 1994, Peter Shor demonstrated that quantum computers can solve all these problems in polynomial time, which made this security issue related to the cryptosystems theory irrelevant. This development is known as the "post-quantum cryptography" (PQC)
In August 2015, the U.S. National Security Agency (NSA) released an announcement regarding its plans to transition to quantum-resistant algorithms. In December 2016, the National Institute of Standards and Technology (NIST) announced a call for proposals for quantum-resistant algorithms. The deadline was November 30, 2017, which also included the falcon signatures used for Tidecoin.