"classical cipher" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Cryptography",
          "orig": "en:Cryptography",
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      "glosses": [
        "A cryptographic algorithm was used historically and are easy to solve by hand or using modern technology."
      ],
      "id": "en-classical_cipher-en-noun-JFZ6wh~T",
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        [
          "cryptography",
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        "(cryptography) A cryptographic algorithm was used historically and are easy to solve by hand or using modern technology."
      ],
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        "computing",
        "cryptography",
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        "mathematics",
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      "wikipedia": [
        "classical cipher"
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  "word": "classical cipher"
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      "form": "classical ciphers",
      "tags": [
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      "expansion": "classical cipher (plural classical ciphers)",
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  "lang_code": "en",
  "pos": "noun",
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        "A cryptographic algorithm was used historically and are easy to solve by hand or using modern technology."
      ],
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        [
          "cryptography",
          "cryptography"
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      ],
      "raw_glosses": [
        "(cryptography) A cryptographic algorithm was used historically and are easy to solve by hand or using modern technology."
      ],
      "topics": [
        "computing",
        "cryptography",
        "engineering",
        "mathematics",
        "natural-sciences",
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        "classical cipher"
      ]
    }
  ],
  "word": "classical cipher"
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