<c:when test="${ pageLoginLink }">
							<li class="nav-item"><la:link href="/login"
									styleClass="nav-link  " role="button" aria-haspopup="true"
									aria-expanded="false">
									<em class="fa fa-fw fa-sign-in">
									<span><la:message key="labels.login" /></span>
								</la:link></li>
						</c:when>
					</c:choose>
					<li class="nav-item"><la:link href="/help" styleClass="nav-link" role="help" aria-haspopup="true"

						<c:when test="${ pageLoginLink }">
							<li class="nav-item"><la:link href="/login"
									styleClass="nav-link  " role="button" aria-haspopup="true"
									aria-expanded="false">
									<em class="fa fa-fw fa-sign-in">
									<span><la:message key="labels.login" /></span>
								</la:link></li>
						</c:when>
					</c:choose>
					<li class="nav-item"><la:link href="/help" styleClass="nav-link" role="help" aria-haspopup="true"

Ils sont, plus ou moins, aux extrémités opposées, se complétant l'un l'autre.

Requests a un design très simple et intuitif, il est très facile à utiliser, avec des valeurs par défaut raisonnables, tout en étant très puissant et personnalisable.

C'est pourquoi, comme le dit le site officiel :

  // The mask for the exponent, according to the {@link
  // Double#doubleToRawLongBits(double)} spec.
  static final long EXPONENT_MASK = 0x7ff0000000000000L;

  // The mask for the sign, according to the {@link
  // Double#doubleToRawLongBits(double)} spec.
  static final long SIGN_MASK = 0x8000000000000000L;

  static final int SIGNIFICAND_BITS = 52;

  static final int EXPONENT_BIAS = 1023;

    long naiveSum = a + b;
    if ((a ^ b) < 0 | (a ^ naiveSum) >= 0) {
      // If a and b have different signs or a has the same sign as the result then there was no
      // overflow, return.
      return naiveSum;
    }
    // we did over/under flow, if the sign is negative we should return MAX otherwise MIN
    return Long.MAX_VALUE + ((naiveSum >>> (Long.SIZE - 1)) ^ 1);
  }

  /**

    } else {
      return new BigInteger(digits, RANDOM_SOURCE).setBit(digits);
    }
  }

  /**
   * Equivalent to calling randomPositiveBigInteger(numBits) and then flipping the sign with 50%
   * probability.
   */
  static BigInteger randomNonZeroBigInteger(int numBits) {
    BigInteger result = randomPositiveBigInteger(numBits);
    return RANDOM_SOURCE.nextBoolean() ? result : result.negate();

								<c:when test="${ pageLoginLink }">
									<li class="nav-item"><la:link href="/login"
											styleClass="nav-link" role="button" aria-haspopup="true"
											aria-expanded="false">
											<em class="fa fa-fw fa-sign-in">
											<la:message key="labels.login" />
										</la:link></li>
								</c:when>
							</c:choose>
							<li class="nav-item"><la:link href="/help"
									styleClass="nav-link help-link">

Since, the client would have the session it can do it by itself.

The temporary security credentials returned by this API consists of an access key, a secret key, and a security token. Applications can use these temporary security credentials to sign calls to MinIO API operations. The policy applied to these temporary credentials is inherited from the MinIO user credentials. By default, the temporary security credentials created by AssumeRole last for one hour. However, use the optional DurationSeconds...

// getChunkSignature - get chunk signature.
// Does not update anything in cr.
func (cr *s3ChunkedReader) getChunkSignature() string {
	hashedChunk := hex.EncodeToString(cr.chunkSHA256Writer.Sum(nil))

	// Calculate string to sign.
	alg := signV4ChunkedAlgorithm + "\n"
	stringToSign := alg +
		cr.seedDate.Format(iso8601Format) + "\n" +
		getScope(cr.seedDate, cr.region) + "\n" +
		cr.seedSignature + "\n" +
		emptySHA256 + "\n" +
		hashedChunk

	// Verify finally if signature is same.

	// Get canonical request.
	presignedCanonicalReq := getCanonicalRequest(extractedSignedHeaders, hashedPayload, encodedQuery, req.URL.Path, req.Method)

	// Get string to sign from canonical request.
	presignedStringToSign := getStringToSign(presignedCanonicalReq, t, pSignValues.Credential.getScope())

	// Get hmac presigned signing key.