| Subject | English | Portuguese |
| comp., MS, Braz. | symmetric key | chave simétrica (The cryptographic key used to both encrypt and decrypt protected content during publishing and consumption) |
| comp., MS, Braz. | symmetric-key cryptography | criptografia de chave simétrica (A type of cryptography that uses symmetric keys to provide confidentiality) |
| comp., MS | symmetric-key cryptography | criptografia de chaves simétricas (A type of cryptography that uses symmetric keys to provide confidentiality) |