openssl

    OpenSSL์„ ์ด์šฉํ•œ ๋Œ€์นญํ‚ค ์•”ํ˜ธํ™”

    1. ๋Œ€์นญํ‚ค ์ƒ์„ฑ - DES ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์‚ฌ์šฉ openssl genrsa -des3 -out privatekey.pem 2. ์•”ํ˜ธํ™” - ๋น„๊ณต๊ฐœํ‚ค ์‚ฌ์šฉ openssl rsautl -encrypt -inkey privatekey.pem -in plaintext.txt -out ciphertext.txt 3. ๋ณตํ˜ธํ™” - ๋น„๊ณต๊ฐœํ‚ค ์‚ฌ์šฉ openssl rsautl -decrypt -inkey privatekey.pem -in ciphertext.txt -out plaintext_out.txt

    OpenSSL์„ ์ด์šฉํ•œ ๋น„๋Œ€์นญํ‚ค ์•”ํ˜ธํ™”

    1. ๋น„๋Œ€์นญํ‚ค ์ƒ์„ฑ - RSA ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์‚ฌ์šฉ openssl genrsa -out privatekey.pem openssl rsa -in privatekey.pem -out publickey.pem -pubout 2. ์•”ํ˜ธํ™” - ๊ณต๊ฐœํ‚ค ์‚ฌ์šฉ openssl rsautl -encrypt -inkey publickey.pem -in plaintext.txt -pubin -out ciphertext.txt 3. ๋ณตํ˜ธํ™” - ๋น„๊ณต๊ฐœํ‚ค ์‚ฌ์šฉ openssl rsautl -decrypt -inkey privatekey.pem -in ciphertext.txt -out plaintext_out.txt