The unified KMS-based approach has several advantages:

- Key management is now centralized. There is one way to change or rotate encryption keys.
   There used to be two different mechanisms - one for regular S3 objects and one for IAM data.
- Reduced server startup time. For IAM encryption with the root credentials, MinIO had
   to use a memory-hard function (Argon2) that (on purpose) consumes a lot of memory and CPU.

	AmzServerSideEncryptionCopyCustomerAlgorithm = "X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm"
	AmzServerSideEncryptionCopyCustomerKey       = "X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key"
	AmzServerSideEncryptionCopyCustomerKeyMD5    = "X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5"

	AmzEncryptionAES = "AES256"
	AmzEncryptionKMS = "aws:kms"

src_obj1_etag=$(echo "${stat_out1}" | jq '.etag')
src_obj1_size=$(echo "${stat_out1}" | jq '.size')
src_obj1_md5=$(echo "${stat_out1}" | jq '.metadata."X-Amz-Server-Side-Encryption-Customer-Key-Md5"')
echo "Stat minio1/test-bucket/defpartsize"
./mc stat --no-list minio1/test-bucket/defpartsize --enc-c "minio1/test-bucket/defpartsize=${TEST_MINIO_ENC_KEY}" --insecure --json

/**
 * Utility class for calculating and verifying PAC (Privilege Attribute Certificate) message authentication codes.
 * This class provides methods for computing MACs using various Kerberos encryption types including
 * ARCFOUR-HMAC-MD5 and AES-based HMAC algorithms.
 */
public class PacMac {

    /**
     * Private constructor to prevent instantiation of utility class.
     */
    private PacMac() {

                    // Server requires encryption - create encryption context
                    try {
                        if (log.isDebugEnabled()) {
                            log.debug("Server requires encryption, creating encryption context");
                        }
                        SmbTransportImpl transport = getTransport();

// storage.
type DEK struct {
	KeyID      string // Name of the master key
	Version    int    // Version of the master key (MinKMS only)
	Plaintext  []byte // Paintext of the data encryption key
	Ciphertext []byte // Ciphertext of the data encryption key
}

var (
	_ encoding.TextMarshaler   = (*DEK)(nil)
	_ encoding.TextUnmarshaler = (*DEK)(nil)
)

// MarshalText encodes the DEK's key ID and ciphertext
// as JSON.

  * {{{https://maven.apache.org/guides/mini/guide-deployment-security-settings.html} Security and Deployment Settings}},

  * {{{https://maven.apache.org/guides/mini/guide-encryption-4.html} Password Encryption}},

import javax.security.auth.Destroyable;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Secure credential storage with encryption at rest.
 *
 * Provides secure storage of passwords and other sensitive credentials
 * using AES-GCM encryption with PBKDF2 key derivation.
 *
 * Features:
 * - Encrypts credentials at rest using AES-256-GCM
 * - Uses PBKDF2 for key derivation from master password

	AmzFwdHeaderSSE                   = "x-amz-fwd-header-x-amz-server-side-encryption"
	AmzFwdHeaderSSEC                  = "x-amz-fwd-header-x-amz-server-side-encryption-customer-algorithm"
	AmzFwdHeaderSSEKMSID              = "x-amz-fwd-header-x-amz-server-side-encryption-aws-kms-key-id"
	AmzFwdHeaderSSECMD5               = "x-amz-fwd-header-x-amz-server-side-encryption-customer-key-MD5"

#RESULT=$({ ./mc put /tmp/data/mpartobj.txt minio1/test-bucket/mpartobj.txt --enc-c "minio1/test-bucket/mpartobj.txt=${TEST_MINIO_ENC_KEY}" --insecure; } 2>&1)
#if [[ ${RESULT} != *"Server side encryption specified with SSE-C with compression not allowed"* ]]; then
#	echo "BUG: Loading an SSE-C object to site with compression should fail. Succeeded though."
#	exit_1
#fi

# Add replication site