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SQL SERVER ENKRIPSI

SQL SERVER ENKRIPSI. KRIPTOGRAFI.

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SQL SERVER ENKRIPSI

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  1. SQL SERVER ENKRIPSI KRIPTOGRAFI • Kriptografi (cryptography) berasaldaribahasaYunani”cryptos” artinya ”secret” (rahasia), sedangkan ”graphein” artinya ”writing” (tulisan). Jadikriptografiberarti ”secret writing” (tulisanrahasia). Kriptografiadalahilmudanseniuntukmenjagakeamananpesan (Bruce Schneier, 1996). Dalamkriptografiterdapatprosesenkripsidandekripsi Inayatullah

  2. SQL SERVER ENKRIPSI Enkripsiyaitusuatuprosespengamansuatu data yang disembunyikanatauproseskonversi data ( plaintext ) menjadibentuk yang tidakdapatdibaca/ dimengerti. Dekripsiyaitukebalikandariprosesenkripsiyaituproseskonversi data yang sudahdienkripsi ( ciphertext ) kembalimenjadi data aslinya ( Original Plaintext ) sehinggadapatdibaca/ dimengertikembali. Inayatullah

  3. SQL SERVER ENKRIPSI KomponendariKriptografi Plain text Sumberberita/pesan/teksasli Cipher text Teks yang sudahdiproses (diacak, digantikan) Algoritma & kunci Misal: subsitusi (algoritma) & number of shift (kunci) Pemisahanalg & kunciditemukanolehAugusteKerckhoffs von Niewenhof (1883) Inayatullah

  4. SQL SERVER ENKRIPSI Contoh: Inayatullah

  5. SQL SERVER ENKRIPSI Contoh: Inayatullah

  6. SQL SERVER ENKRIPSI PENGGUNAAN ENKRIPSI Mengamankan data denganmengacak data sehinggasulituntukdibaca(confidentiality) Meyakinkantidakadaperubahan data(Integrity) Memastikanidentitasseseorangdengan digital Signature(Authentication) Inayatullah

  7. SQL SERVER ENKRIPSI H I R A R K I Inayatullah

  8. Encryption SQL SERVER ENKRIPSI Alice SYMMETRIC KEY = > KUNCI ENKRIPSI DAN DEKRIPSI SAMA Bob Shared (secret) key Decryption Plaintext Plaintext Ciphertext My phone555-1234 My phone555-1234 Y$3*@ Eve Inayatullah

  9. Encryption SQL SERVER ENKRIPSI Public key repositoryCertificate Authority (CA) Public key Private key ASYMMETRIC KEY = > KUNCI ENKRIPSI DAN DEKRIPSI BERBEDA Decryption Plaintext Plaintext Ciphertext My phone555-1234 My phone555-1234 L)8*@Hg Inayatullah

  10. SQL SERVER ENKRIPSI Inayatullah

  11. SQL SERVER ENKRIPSI Inayatullah

  12. SQL SERVER ENKRIPSI Inayatullah

  13. SQL SERVER ENKRIPSI Inayatullah

  14. SQL SERVER ENKRIPSI Inayatullah

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