如何在S3中使用Ruby实现大文件的流式传输和解密

gem install aws-sdk-s3

require 'aws-sdk-s3'
require 'openssl'

s3_client = Aws::S3::Client.new(
  region: 'your_region',
  access_key_id: 'your_access_key_id',
  secret_access_key: 'your_secret_access_key'
)

def stream_and_decrypt_large_file(bucket_name, object_key, decryption_key)
  s3_client.get_object(bucket: bucket_name, key: object_key, response_target: decryption_key) do |chunk|
    # 在这里进行解密操作，这里使用AES-256解密示例
    decipher = OpenSSL::Cipher.new('AES-256-CBC')
    decipher.decrypt
    decipher.key = decryption_key

    decrypted_chunk = decipher.update(chunk)
    # 处理解密后的数据，例如写入文件或进行其他操作
    # ...
  end
end

bucket_name = 'your_bucket_name'
object_key = 'your_object_key'
decryption_key = 'path_to_decryption_key_file'

stream_and_decrypt_large_file(bucket_name, object_key, decryption_key)