ARIA-192-CTR ENCRYPTION TOOL
Other Crypto Algorithms
AES-128-CBC AES-128-CBC-CTS AES-128-CBC-HMAC-SHA1 AES-128-CBC-HMAC-SHA256 AES-128-CCM AES-128-CFB AES-128-CFB1 AES-128-CFB8 AES-128-CTR AES-128-ECB AES-128-GCM AES-128-GCM-SIV AES-128-OCB AES-128-OFB AES-128-SIV AES-128-WRAP AES-128-WRAP-INV AES-128-WRAP-PAD AES-128-WRAP-PAD-INV AES-128-XTS AES-192-CBC AES-192-CBC-CTS AES-192-CCM AES-192-CFB AES-192-CFB1 AES-192-CFB8 AES-192-CTR AES-192-ECB AES-192-GCM AES-192-GCM-SIV AES-192-OCB AES-192-OFB AES-192-SIV AES-192-WRAP AES-192-WRAP-INV AES-192-WRAP-PAD AES-192-WRAP-PAD-INV AES-256-CBC AES-256-CBC-CTS AES-256-CBC-HMAC-SHA1 AES-256-CBC-HMAC-SHA256 AES-256-CCM AES-256-CFB AES-256-CFB1 AES-256-CFB8 AES-256-CTR AES-256-ECB AES-256-GCM AES-256-GCM-SIV AES-256-OCB AES-256-OFB AES-256-SIV AES-256-WRAP AES-256-WRAP-INV AES-256-WRAP-PAD AES-256-WRAP-PAD-INV AES-256-XTS ARIA-128-CBC ARIA-128-CCM ARIA-128-CFB ARIA-128-CFB1 ARIA-128-CFB8 ARIA-128-CTR ARIA-128-ECB ARIA-128-GCM ARIA-128-OFB ARIA-192-CBC ARIA-192-CCM ARIA-192-CFB ARIA-192-CFB1 ARIA-192-CFB8 ARIA-192-CTR ARIA-192-ECB ARIA-192-GCM ARIA-192-OFB ARIA-256-CBC ARIA-256-CCM ARIA-256-CFB ARIA-256-CFB1 ARIA-256-CFB8 ARIA-256-CTR ARIA-256-ECB ARIA-256-GCM ARIA-256-OFB CAMELLIA-128-CBC CAMELLIA-128-CBC-CTS CAMELLIA-128-CFB CAMELLIA-128-CFB1 CAMELLIA-128-CFB8 CAMELLIA-128-CTR CAMELLIA-128-ECB CAMELLIA-128-OFB CAMELLIA-192-CBC CAMELLIA-192-CBC-CTS CAMELLIA-192-CFB CAMELLIA-192-CFB1 CAMELLIA-192-CFB8 CAMELLIA-192-CTR CAMELLIA-192-ECB CAMELLIA-192-OFB CAMELLIA-256-CBC CAMELLIA-256-CBC-CTS CAMELLIA-256-CFB CAMELLIA-256-CFB1 CAMELLIA-256-CFB8 CAMELLIA-256-CTR CAMELLIA-256-ECB CAMELLIA-256-OFB CHACHA20 CHACHA20-POLY1305 DES-EDE-CBC DES-EDE-CFB DES-EDE-ECB DES-EDE-OFB DES-EDE3-CBC DES-EDE3-CFB DES-EDE3-CFB1 DES-EDE3-CFB8 DES-EDE3-ECB DES-EDE3-OFB DES3-WRAPThe ARIA-192-CTR algorithm is a symmetric key block cipher operating in counter mode (CTR), providing authenticated encryption through a stream cipher approach. It employs a 192-bit key to ensure a high level of security suitable for sensitive data transmission. The underlying block cipher, ARIA, was developed to meet international standards for secure communication and supports key sizes of 128, 192, and 256 bits, with 192-bit offering a balance between performance and security.
Block Cipher Structure
ARIA uses a substitution-permutation network (SPN) structure consisting of multiple rounds of transformations. Each round includes a substitution layer using S-boxes for non-linear mapping, a diffusion layer employing linear transformations to spread the influence of each input bit across the block, and a round key addition through XOR operations. The number of rounds for ARIA-192 is 12, optimized to resist differential and linear cryptanalysis.
Key Schedule
The key schedule generates round keys from the 192-bit master key using a combination of substitution, permutation, and mixing operations. This ensures each round key is unique and contributes to the algorithm's overall resistance to cryptanalytic attacks. The round keys are derived in a deterministic manner, allowing both encryption and decryption processes to synchronize without additional data exchange.
Counter Mode Operation
In CTR mode, a counter value is encrypted with the ARIA-192 block cipher and then XORed with plaintext blocks to produce ciphertext. The counter is incremented for each block, ensuring that each block uses a unique keystream. This mode enables parallel encryption and decryption, improving performance in high-throughput applications. Additionally, CTR mode transforms the block cipher into a stream cipher, eliminating the need for padding and providing random access decryption.
Security Considerations
ARIA-192-CTR provides confidentiality and is resilient against known attacks when used with proper key management and nonce selection. Each counter value must be unique to prevent keystream reuse, which could compromise data security. The algorithm maintains resistance to linear, differential, and related-key attacks due to the SPN structure and robust key schedule. Proper implementation ensures integrity in environments requiring high-speed, secure encryption for large datasets.
Applications
This algorithm is suitable for securing network communications, encrypting storage media, and protecting sensitive information in embedded systems and enterprise-level applications. Its parallelizable CTR mode allows efficient processing on modern hardware, while the 192-bit key offers a compromise between performance and security against brute-force attacks.