# INCS741 New York Institute RSA Implementation Using OpenSSL Project

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Programming

INCS741

New York Institute of Technology

### Description

I am given an assignment on RSA Implementation using OpenSSL. Need to submit a detailed report with appropriate solutions as asked in the file attached.

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Hello, here's the complete fileSorry for delay though

Openssl cryptographic library implement the RSA public key encryption
Scheme
Program to generate prime numbers p, and q, calculating the
values of n, e and private key d. The value of e should be chosen randomly.
import pyasn1.codec.der.encoder
import pyasn1.type.univ
def pempriv(n, e, d, p, q, dP, dQ, qInv):
template = '-----BEGIN RSA PRIVATE KEY-----\n{}-----END RSA PRIVATE KEY----\n'
seq = pyasn1.type.univ.Sequence()
for x in [0, n, e, d, p, q, dP, dQ, qInv]:
seq.setComponentByPosition(len(seq), pyasn1.type.univ.Integer(x))
der = pyasn1.codec.der.encoder.encode(seq)
return template.format(base64.encodestring(der).decode('ascii'))=
n = p * q
phi = (p -1)*(q-1)
d = modinv(e, phi)
dp = modinv(e,(p-1))
dq = modinv(e,(q-1))
qi = modinv(q,p)
key = pempriv(n, e, d, p, q, dp, dq, qi)
f = open(output_file,"w")
f.write(key)
f.close()

Program
#include
#ifdef OPENSSL_NO_RSA
NON_EMPTY_TRANSLATION_UNIT
#else
# include
# include
# include
# include
# include "apps.h"
# include "progs.h"
# include
# include
# include

# include
# include
# include
# include
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN,
OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT,
/* Do not change the order here; see case statements below */
OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER
} OPTION_CHOICE;
const OPTIONS rsa_o...

Review
Review

Anonymous
Excellent resource! Really helped me get the gist of things.

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