Пакет encoding/pem

Пакет encoding/pem предоставляет функции для работы с PEM-кодированными данными. PEM - это текстовый формат, который представляет двоичные данные в виде Base64 с добавлением заголовков и завершающих строк. В первом параметре функции pem.Decode передается блок данных для декодирования, во втором параметре функции pem.Encode передается структура pem.Block, содержащая данные для кодирования.

Синтаксис

pem.Decode(data)
pem.Encode(w, block)
pem.EncodeToMemory(block)

Функция pem.Decode - декодирование PEM данных

Функция pem.Decode принимает срез байт, содержащий PEM-данные, и возвращает указатель на структуру pem.Block, если декодирование успешно, или nil, если данные не являются корректным PEM-блоком. Структура pem.Block содержит поля Type (тип данных, например, "CERTIFICATE" или "RSA PRIVATE KEY") и Bytes (декодированные двоичные данные).

<~show~> <+go+> package main import ( "encoding/pem" "fmt" "log" ) func main() { pemData := []byte(` -----BEGIN CERTIFICATE----- MIIDXTCCAkWgAwIBAgIJAKv0B4UwbKbCMA0GCSqGSIb3DQEBCwUAMEUxCzAJBgNV BAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBX aWRnaXRzIFB0eSBMdGQwHhcNMjQwMTAxMDAwMDAwWhcNMjUwMTAxMDAwMDAwWjBF MQswCQYDVQQGEwJBVTETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50 ZXJuZXQgV2lkZ2l0cyBQdHkgTHRkMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB CgKCAQEAwBxZc9jZjCVsBKp2gQFxXzYq2BQE0YJYhWmQgAEGQX6bKxJpJEBmNqDs xv1L5qVqA5YVJhUfJZtQwVlDdN3YYPqYHXkqVbJZmEJmNnFqVKtZGzXYnWZtYx XjVgXJYqYwZkJdKtYxQwWXyPqYHXkqVbJZmEJmNnFqVKtZGzXYnWZtYxXjVgXJ YqYwZkJdKtYxQwWXyPqYHXkqVbJZmEJmNnFqVKtZGzXYnWZtYxXjVgXJYqYwZk JdKtYxQwWXyPqYHXkqVbJZmEJmNnFqVKtZGzXYnWZtYxXjVgXJYqYwZkJdKtYx QwWXyPqYHXkqVbJZmEJmNnFqVKtZGzXYnWZtYxXjVgXJYqYwZkJdKtYxQwWXyP qYHXkqVbJZmEJmNnFqVKtZGzXYnWZtYxXjVgXJYqYwZkJdKtYxQwIDAQABo1Aw TjAdBgNVHQ4EFgQU5mZxJqYvWjYVXJqYvWjYVXJqYvWjYVXJqYvWjYVXJqYvWjYV 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