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Convert a structure into a string
Convert the contents of each fields into a string. Example with an input structure s with 2 fields : s.age = '33' s....

5 months ago

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Pig Latin to English Translator
Pig latin is a faux-language based off of English. The rules are as follows (excerpted from the <http://en.wikipedia.org/wiki/Pi...

5 months ago

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English to Pig Latin Translator
Pig latin is a faux-language based off of English. The rules are as follows (excerpted from the wikipedia entry for Pig Latin): ...

5 months ago

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Formatting currency numbers
Given a number, format it properly for textual display using the notation $xxx,xxx,xxx.xx. Assume that no more than two digits ...

5 months ago

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Bang Bang in Bangalore
Imagine a strange language disorder, Bangolangosis, has developed among trigonometricians of <http://en.wikipedia.org/wiki/Banga...

5 months ago

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Determine RSA keys (public and private) given two prime number character strings (p and q)
Given two prime number character strings (p and q), generate the RSA public and private keys (n and d) with e = 65537. The more ...

5 months ago

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Create State Array for initiating SHA-3-224 Hash
Create binary represented state array (as the initial input to the sponge function (f)) from any length character array (N) with...

5 months ago

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RSA encryption using public key
Encrypt the message text by converting to uint8 matrix using UTF-8 representation. Convert uint8 matrix to a large integer strin...

5 months ago

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RSA decryption
Decrypt a large integer string using RSA decryption given the public key (n) and private key (d). Convert the large integer decr...

5 months ago

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Mask Generation Function (MGF1) for PKCS #1 Standard utilizing Optimal Asymmetric Encryption Padding for RSA Cryptography
Create Mask Generation Function (MGF1) from PKCS #1 v2.2 standard (B.2.1 page 50) at below link. Input will be character array (...

5 months ago

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Optimal Asymmetric Encryption Padding of message for RSA Cryptography
EME-OAEP encoding of input message using a Feistel network with SHA-1 hashing within the mask generation function (MGF1) (see pr...

5 months ago

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Optimal Asymmetric Encryption Padding decoding of message for RSA Cryptography
EME-OAEP decoding by reversing the Feistel network using previously determined mask generation function (MGF1) and SHA-1 hashing...

5 months ago

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Obtain the Bitcoin address associated to a given private key
All the information you need is at <https://en.bitcoin.it/wiki/Address> and you may also find helpful <https://brainwal...

5 months ago

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Find the Arc Length of the Curve Defined by the Parametric Functions

5 months ago

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Find and replaces spaces from a input string with *
For a given input string str, find how many spaces are there in the string and replace those spaces with * e.g. str = 'this is ...

5 months ago

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Sum of all the divisors of n

5 months ago

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Inverse Number Theoretic Transform (iNTT)

5 months ago

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Number Theoretic Transform (NTT)

5 months ago

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Determine the kth Primitive Root of Unity

5 months ago

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Montgomery Multiplication

5 months ago

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Montgomery Reduction Algorithm (REDC)

5 months ago

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Find R*Rp-N*Np=1 given gcd(R,N)=1

5 months ago

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RIPEMD160 Hash
Generator the RIPEMD160 hash given an input string and output the hexadecimal RIPEMD160 hash. For example: Input='My name is...

5 months ago

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SHA256 Hashing
Conduct SHA256 hashing on a hexadecimal input to produce a 256-bit hexadecimal output. Example: hash = SHA256('aa') hash ...

5 months ago

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Binary Array to Hex Representation
Given a binary array of bytes (lsb to msb), convert it into a hexadecimal representation (msb to lsb). For example: Input: [1 ...

5 months ago

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String to Binary Representation
Given a string, convert it using UTF-8 into a binary array where each character or byte is arraigned low to high. For example: ...

5 months ago

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AES-256 KeyExpansion()
Given a 32-byte hexadecimal character array representing the AES-256 input key, execute the AES-256 algorithm, KeyExpansion() an...

5 months ago

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AES MixColumns() Transformation
Given a 16x2 input character hexadecimal array representing the AES state, execute the AES algorithm MixColumns() transformation...

5 months ago

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AES SubBytes() Transformation
Given a 16x2 input character hexadecimal array representing the AES state, execute the AES algorithm SubBytes() transformation a...

5 months ago

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Elliptic Curve Cryptography (ECC) Point Addition
Given two points (P and Q, they can be the same points on the elliptic curve), compute ECC point addition on a Weierstrass ellip...

5 months ago